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177 lines
7.1 KiB
HTML
177 lines
7.1 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.activation
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</div>
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<h2 class="title" title="Interface DataSource">Interface DataSource</h2>
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</div><div class="contentContainer">
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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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所有已知实现类：
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</dt>
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<dd>
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<span><a href="../../javax/activation/FileDataSource.html" title="javax.activation中的类">FileDataSource</a> ， <a href="../../javax/activation/URLDataSource.html" title="javax.activation中的类">URLDataSource</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public interface <span class="typeNameLabel">DataSource</span></pre>
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<div class="block">
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<span>DataSource接口为JavaBean激活框架提供了任意数据集合的抽象。</span>
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<span>它提供了一种类型的数据，并以<code>InputStreams</code>和<code>OutputStreams</code>的形式访问它。</span>
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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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1.6
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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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<ul class="blockList">
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<li class="blockList">
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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="t3"><span><a href="javascript:show(4);">抽象方法</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><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/activation/DataSource.html#getContentType--">getContentType</a></span>()</code>
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<div class="block">
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此方法以字符串的形式返回数据的MIME类型。
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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><a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/activation/DataSource.html#getInputStream--">getInputStream</a></span>()</code>
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<div class="block">
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此方法返回一个
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<code>InputStream</code>数据的InputStream，如果不能这样做，则会抛出相应的异常。
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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><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/activation/DataSource.html#getName--">getName</a></span>()</code>
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<div class="block">
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返回此对象，其中对象的名称是依赖于底层的对象的性质
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<i>名称</i> 。
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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><a href="../../java/io/OutputStream.html" title="class in java.io">OutputStream</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/activation/DataSource.html#getOutputStream--">getOutputStream</a></span>()</code>
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<div class="block">
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此方法返回一个
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<code>OutputStream</code> ，其中可以写入数据，如果不能这样做，则抛出相应的异常。
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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> </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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<!-- ============ 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="getInputStream--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getInputStream</h4> <pre><a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> getInputStream()
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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>此方法返回一个<code>InputStream</code>数据的InputStream，如果不能这样做，则会抛出适当的异常。</span>
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<span>请注意，每次调用此方法时，必须返回一个新的<code>InputStream</code>对象，并且流必须位于数据的开头。</span>
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</div>
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<dl>
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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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一个InputStream
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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>
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</dd>
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</dl> </li>
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</ul> <a name="getOutputStream--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getOutputStream</h4> <pre><a href="../../java/io/OutputStream.html" title="class in java.io">OutputStream</a> getOutputStream()
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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>该方法返回一个<code>OutputStream</code> ，其中可以写入数据，并引发相应的异常，如果它不能这样做。</span>
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<span>请注意，每次调用此方法时，必须返回一个新的<code>OutputStream</code>对象，并且流必须位于数据要写入的位置。</span>
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</div>
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<dl>
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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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一个OutputStream
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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>
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</dd>
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</dl> </li>
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</ul> <a name="getContentType--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getContentType</h4> <pre><a href="../../java/lang/String.html" title="class in java.lang">String</a> getContentType()</pre>
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<div class="block">
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<span>此方法以字符串的形式返回数据的MIME类型。</span>
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<span>它应该总是返回一个有效的类型。</span>
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<span>建议如果DataSource实现无法确定数据类型，则getContentType返回“application / octet-stream”。</span>
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</div>
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<dl>
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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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MIME类型
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</dd>
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</dl> </li>
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</ul> <a name="getName--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>getName</h4> <pre><a href="../../java/lang/String.html" title="class in java.lang">String</a> getName()</pre>
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<div class="block">
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<span>返回此对象，其中对象的名称是依赖于底层的对象的性质<i>名称</i> 。</span>
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<span>DataSources封装文件可能会选择返回对象的文件名。</span>
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<span>（通常这将是文件名的最后一个组件，而不是整个路径名。）</span>
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</div>
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<dl>
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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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对象的名称。
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</dd>
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</dl> </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> |