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560 lines
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560 lines
22 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.crypto
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</div>
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<h2 class="title" title="Class CipherInputStream">Class CipherInputStream</h2>
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</div><div class="contentContainer">
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<ul class="inheritance">
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<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<li>
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<ul class="inheritance">
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<li><a href="../../java/io/InputStream.html" title="class in java.io">java.io.InputStream</a></li>
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<li>
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<ul class="inheritance">
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<li><a href="../../java/io/FilterInputStream.html" title="class in java.io">java.io.FilterInputStream</a></li>
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<li>
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<ul class="inheritance">
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<li>javax.crypto.CipherInputStream</li>
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</ul> </li>
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</ul> </li>
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</ul> </li>
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</ul>
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<div class="description">
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<ul class="blockList">
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<li class="blockList">
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<dl>
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<dt>
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All Implemented Interfaces:
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</dt>
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<dd>
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<span><a href="../../java/io/Closeable.html" title="java.io中的接口">Closeable</a> ， <a href="../../java/lang/AutoCloseable.html" title="java.lang中的接口">AutoCloseable</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public class <span class="typeNameLabel">CipherInputStream</span>
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extends <a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></pre>
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<div class="block">
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<span>CipherInputStream由InputStream和Cipher组成，使得read（）方法返回从底层InputStream读入但是由Cipher额外处理的数据。</span>
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<span>密码必须在被CipherInputStream使用之前完全初始化。</span>
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<p> <span>例如，如果将密码初始化为解密，则CipherInputStream将在返回解密的数据之前尝试读取数据并将其解密。</span> </p>
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<p> <span>该类严格遵守其祖先类java.io.FilterInputStream和java.io.InputStream的语义，特别是失败语义。</span> <span>这个类只有在其祖先类中指定的方法，并覆盖它们全部。</span> <span>此外，此类捕获其祖先类不抛出的所有异常。</span> <span>特别地， <code>skip</code>方法跳过，并且<code>available</code>方法仅计数已由封装的密码处理的数据。</span> </p>
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<p> <span>对于使用此类的程序员，不要使用在此类中未定义或覆盖的方法（例如后来添加到其中一个超类的新方法或构造函数），因为这些方法的设计和实现不太可能考虑到对CipherInputStream的安全性影响。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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1.4
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../java/io/InputStream.html" title="java.io中的类"><code>InputStream</code></a> ， <a href="../../java/io/FilterInputStream.html" title="java.io中的类"><code>FilterInputStream</code></a> ， <a href="../../javax/crypto/Cipher.html" title="javax.crypto中的类"><code>Cipher</code></a> ， <a href="../../javax/crypto/CipherOutputStream.html" title="javax.crypto中的类"><code>CipherOutputStream</code></a></span>
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<!-- =========== FIELD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="field.summary">
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<!-- --> </a> <h3>Field Summary</h3>
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<ul class="blockList">
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<li class="blockList"><a name="fields.inherited.from.class.java.io.FilterInputStream">
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<!-- --> </a> <h3>Fields inherited from class java.io.<a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></h3> <code><a href="../../java/io/FilterInputStream.html#in">in</a></code></li>
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</ul> </li>
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</ul>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.summary">
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<!-- --> </a> <h3>构造方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption>
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<span>构造方法</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier</th>
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<th class="colLast" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>protected </code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#CipherInputStream-java.io.InputStream-">CipherInputStream</a></span>(<a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> is)</code>
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<div class="block">
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从InputStream构造CipherInputStream，而不指定密码。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code> </code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#CipherInputStream-java.io.InputStream-javax.crypto.Cipher-">CipherInputStream</a></span>(<a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> is, <a href="../../javax/crypto/Cipher.html" title="class in javax.crypto">Cipher</a> c)</code>
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<div class="block">
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从InputStream和Cipher构造一个CipherInputStream。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#available--">available</a></span>()</code>
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<div class="block">
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返回可以从该输入流读取而不阻塞的字节数。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#close--">close</a></span>()</code>
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<div class="block">
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关闭此输入流并释放与流相关联的任何系统资源。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#markSupported--">markSupported</a></span>()</code>
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<div class="block">
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测试这个输入流是否支持
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<code>mark</code>和
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<code>reset</code>方法，而不是。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#read--">read</a></span>()</code>
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<div class="block">
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从该输入流读取下一个数据字节。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#read-byte:A-">read</a></span>(byte[] b)</code>
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<div class="block">
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从该输入流读取最多
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<code>b.length</code>个字节的数据到字节数组。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i5">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#read-byte:A-int-int-">read</a></span>(byte[] b, int off, int len)</code>
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<div class="block">
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从该输入流读取高达
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<code>len</code>字节的数据到字节数组。
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</div> </td>
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</tr>
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<tr class="altColor" id="i6">
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<td class="colFirst"><code>long</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/CipherInputStream.html#skip-long-">skip</a></span>(long n)</code>
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<div class="block">
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跳过
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<code>n</code>字节的字节，可从该输入流中读取而不阻塞。
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</div> </td>
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</tr>
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</tbody>
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</table>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.io.FilterInputStream">
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<!-- --> </a> <h3>Methods inherited from class java.io.<a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></h3> <code><a href="../../java/io/FilterInputStream.html#mark-int-">mark</a>, <a href="../../java/io/FilterInputStream.html#reset--">reset</a></code></li>
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</ul>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../java/lang/Object.html#clone--">clone</a>, <a href="../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../java/lang/Object.html#hashCode--">hashCode</a>, <a href="../../java/lang/Object.html#notify--">notify</a>, <a href="../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../java/lang/Object.html#toString--">toString</a>, <a href="../../java/lang/Object.html#wait--">wait</a>, <a href="../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.detail">
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<!-- --> </a> <h3>构造方法详细信息</h3> <a name="CipherInputStream-java.io.InputStream-javax.crypto.Cipher-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>CipherInputStream</h4> <pre>public CipherInputStream(<a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> is,
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<a href="../../javax/crypto/Cipher.html" title="class in javax.crypto">Cipher</a> c)</pre>
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<div class="block">
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<span>从InputStream和Cipher构造一个CipherInputStream。</span>
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<br/>
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<span>注意：如果指定的输入流或密码为空，则在使用NullPointerException时可能会稍后抛出。</span>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>is</code> - 要处理的输入流
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</dd>
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<dd>
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<code>c</code> - 一个初始化的Cipher对象
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</dd>
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</dl> </li>
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</ul> <a name="CipherInputStream-java.io.InputStream-">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>CipherInputStream</h4> <pre>protected CipherInputStream(<a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> is)</pre>
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<div class="block">
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<span>从InputStream构造CipherInputStream，而不指定密码。</span>
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<span>这具有使用NullCipher构造CipherInputStream的效果。</span>
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<br/>
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<span>注意：如果指定的输入流为空，则在使用NullPointerException时可能会稍后抛出。</span>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>is</code> - 待处理的输入流
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</dd>
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</dl> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="read--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>read</h4> <pre>public int read()
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throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
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<div class="block">
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<span>从该输入流读取下一个数据字节。</span>
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<span>值字节作为<code>int</code>返回，范围为<code>0</code>至<code>255</code> 。</span>
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<span>如果没有字节可用，因为流已经到达，则返回值<code>-1</code> 。</span>
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<span>该方法阻塞直到输入数据可用，检测到流的结尾，或抛出异常。</span>
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<p></p>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/io/FilterInputStream.html#read--">read</a></code>在
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<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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数据的下一个字节，如果达到流的末尾，
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<code>-1</code> 。
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
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</dd>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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JCE1.2
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../java/io/FilterInputStream.html#in"><code>FilterInputStream.in</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="read-byte:A-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>read</h4> <pre>public int read(byte[] b)
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throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
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<div class="block">
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<span>从该输入流读取高达<code>b.length</code>字节的数据到字节数组。</span>
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<p> <span>该<code>read</code>的方法<code>InputStream</code>调用<code>read</code>的三个参数与参数方法<code>b</code> ， <code>0</code>和<code>b.length</code> 。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/io/FilterInputStream.html#read-byte:A-">read</a></code>在
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<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
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</dd>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>b</code> - 读取数据的缓冲区。
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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读入缓冲区的总字节数，或
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<code>-1</code>是没有更多的数据，因为已经到达流的结尾。
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
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</dd>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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JCE1.2
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../java/io/InputStream.html#read-byte:A-int-int-"><code>InputStream.read(byte[], int, int)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="read-byte:A-int-int-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>read</h4> <pre>public int read(byte[] b,
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int off,
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int len)
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throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
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<div class="block">
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<span>从该输入流读取高达<code>len</code>字节的数据到字节数组。</span>
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<span>此方法将阻塞，直到某些输入可用。</span>
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<span>如果第一个参数是<code>null,</code>最多可以读取并丢弃<code>len</code>个字节。</span>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/io/FilterInputStream.html#read-byte:A-int-int-">read</a></code>在
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<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
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</dd>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>b</code> - 读取数据的缓冲区。
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</dd>
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<dd>
|
||
<code>off</code> - 目标数组
|
||
<code>buf</code>的起始偏移量
|
||
</dd>
|
||
<dd>
|
||
<code>len</code> - 读取的最大字节数。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
读取到缓冲区的总字节数，如果没有更多的数据，因为已经到达流的末尾，则是
|
||
<code>-1</code> 。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
JCE1.2
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../java/io/InputStream.html#read--"><code>InputStream.read()</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="skip-long-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>skip</h4> <pre>public long skip(long n)
|
||
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
|
||
<div class="block">
|
||
<span>跳过<code>n</code>字节的字节，可从该输入流中读取而不阻塞。</span>
|
||
<p> <span>可能会跳过比请求的字节少的字节。</span> <span>跳过的实际字节数等于<code>n</code>或调用<a href="../../javax/crypto/CipherInputStream.html#available--"><code>available</code></a>的结果，以<a href="../../javax/crypto/CipherInputStream.html#available--">较小</a>者为准。</span> <span>如果<code>n</code>小于0，则不跳过任何字节。</span> </p>
|
||
<p> <span>返回实际跳过的字节数。</span> </p>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">重写：</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/FilterInputStream.html#skip-long-">skip</a></code>在
|
||
<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>n</code> - 要跳过的字节数。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
实际跳过的字节数。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
JCE1.2
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="available--">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>available</h4> <pre>public int available()
|
||
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
|
||
<div class="block">
|
||
<span>返回可以从该输入流读取而不阻塞的字节数。</span>
|
||
<span><code>available</code>方法<code>InputStream</code>返回<code>0</code> 。</span>
|
||
<span>这个方法<b>应该</b>被子类覆盖。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">重写：</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/FilterInputStream.html#available--">available</a></code>在
|
||
<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
可以从此输入流中读取而不阻塞的字节数。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
JCE1.2
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="close--">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>close</h4> <pre>public void close()
|
||
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
|
||
<div class="block">
|
||
<span>关闭此输入流并释放与流相关联的任何系统资源。</span>
|
||
<p> <span>该<code>close</code>的方法<code>CipherInputStream</code>调用<code>close</code>其底层输入流的方法。</span> </p>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">Specified by:</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/Closeable.html#close--">close</a></code>在界面
|
||
<code><a href="../../java/io/Closeable.html" title="interface in java.io">Closeable</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">Specified by:</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/lang/AutoCloseable.html#close--">close</a></code>在界面
|
||
<code><a href="../../java/lang/AutoCloseable.html" title="interface in java.lang">AutoCloseable</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">重写：</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/FilterInputStream.html#close--">close</a></code>在类别
|
||
<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果发生I / O错误。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
JCE1.2
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../java/io/FilterInputStream.html#in"><code>FilterInputStream.in</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="markSupported--">
|
||
<!-- --> </a>
|
||
<ul class="blockListLast">
|
||
<li class="blockList"> <h4>markSupported</h4> <pre>public boolean markSupported()</pre>
|
||
<div class="block">
|
||
测试这个输入流是否支持
|
||
<code>mark</code>和
|
||
<code>reset</code>方法，而不是。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="overrideSpecifyLabel">重写：</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/FilterInputStream.html#markSupported--">markSupported</a></code>在类别
|
||
<code><a href="../../java/io/FilterInputStream.html" title="class in java.io">FilterInputStream</a></code>
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
<code>false</code> ，因为这个类不支持
|
||
<code>mark</code>和
|
||
<code>reset</code>方法。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
JCE1.2
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../java/io/InputStream.html#mark-int-"><code>InputStream.mark(int)</code></a> ，
|
||
<a href="../../java/io/InputStream.html#reset--"><code>InputStream.reset()</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> </li>
|
||
</ul> </li>
|
||
</ul>
|
||
</div>
|
||
</div> |