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<div class="header">
<div class="subTitle">
compact3
</div>
<div class="subTitle">
javax.tools
</div>
<h2 class="title" title="Interface FileObject">Interface FileObject</h2>
</div><div class="contentContainer">
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>
All Known Subinterfaces:
</dt>
<dd>
<span><a href="../../javax/tools/JavaFileObject.html" title="javax.tools中的接口">JavaFileObject</a></span>
</dd>
</dl>
<dl>
<dt>
所有已知实现类：
</dt>
<dd>
<span><a href="../../javax/tools/ForwardingFileObject.html" title="javax.tools中的类">ForwardingFileObject</a> ， <a href="../../javax/tools/ForwardingJavaFileObject.html" title="javax.tools中的类">ForwardingJavaFileObject</a> ， <a href="../../javax/tools/SimpleJavaFileObject.html" title="javax.tools中的类">SimpleJavaFileObject</a></span>
</dd>
</dl>
<hr/> <br/> <pre>public interface <span class="typeNameLabel">FileObject</span></pre>
<div class="block">
<span>文件抽象的工具。</span>
<span>在这种情况下， <em>文件</em>意味着抽象普通文件和其他数据源。</span>
<span>例如，文件对象可用于表示数据库中的常规文件，内存缓存或数据。</span>
<p> <span>如果发生安全异常，此接口中的所有方法都可能会抛出SecurityException异常。</span> </p>
<p> <span>除非明确允许，如果给定一个<code>null</code>参数，则该接口中的所有方法都可能会抛出<code>null</code> 。</span> </p>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.6
</dd>
</dl> </li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!-- --> </a> <h3>方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t3"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor" id="i0">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#delete--">delete</a></span>()</code>
<div class="block">
删除此文件对象。
</div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="../../java/lang/CharSequence.html" title="interface in java.lang">CharSequence</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#getCharContent-boolean-">getCharContent</a></span>(boolean ignoreEncodingErrors)</code>
<div class="block">
获取此文件对象的字符内容（如果可用）。
</div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#getLastModified--">getLastModified</a></span>()</code>
<div class="block">
获取上次修改此文件对象的时间。
</div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#getName--">getName</a></span>()</code>
<div class="block">
获取此文件对象的用户友好名称。
</div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code><a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#openInputStream--">openInputStream</a></span>()</code>
<div class="block">
获取此文件对象的InputStream。
</div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code><a href="../../java/io/OutputStream.html" title="class in java.io">OutputStream</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#openOutputStream--">openOutputStream</a></span>()</code>
<div class="block">
获取此文件对象的OutputStream。
</div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code><a href="../../java/io/Reader.html" title="class in java.io">Reader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#openReader-boolean-">openReader</a></span>(boolean ignoreEncodingErrors)</code>
<div class="block">
获取此对象的读者。
</div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code><a href="../../java/io/Writer.html" title="class in java.io">Writer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#openWriter--">openWriter</a></span>()</code>
<div class="block">
获取此文件对象的Writer。
</div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code><a href="../../java/net/URI.html" title="class in java.net">URI</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/tools/FileObject.html#toUri--">toUri</a></span>()</code>
<div class="block">
返回标识此文件对象的URI。
</div> </td>
</tr>
</tbody>
</table> </li>
</ul> </li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- --> </a> <h3>方法详细信息</h3> <a name="toUri--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>toUri</h4> <pre><a href="../../java/net/URI.html" title="class in java.net">URI</a> toUri()</pre>
<div class="block">
返回标识此文件对象的URI。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个URI
</dd>
</dl> </li>
</ul> <a name="getName--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getName</h4> <pre><a href="../../java/lang/String.html" title="class in java.lang">String</a> getName()</pre>
<div class="block">
<span>获取此文件对象的用户友好名称。</span>
<span>没有指定返回的确切值，但实现应该小心保留用户给出的名称。</span>
<span>例如，如果用户在命令行上写入文件名<code>"BobsApp\Test.java"</code> ，则此方法应返回<code>"BobsApp\Test.java"</code>而<a href="../../javax/tools/FileObject.html#toUri--">toUri</a>方法可能返回<code>file:///C:/Documents%20and%20Settings/UncleBob/BobsApp/Test.java</code> 。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
用户友好的名称
</dd>
</dl> </li>
</ul> <a name="openInputStream--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>openInputStream</h4> <pre><a href="../../java/io/InputStream.html" title="class in java.io">InputStream</a> openInputStream()
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
<div class="block">
获取此文件对象的InputStream。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个InputStream
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalStateException.html" title="class in java.lang">IllegalStateException</a></code> - 如果这个文件对象被打开来写入并且不支持读取
</dd>
<dd>
<code><a href="../../java/lang/UnsupportedOperationException.html" title="class in java.lang">UnsupportedOperationException</a></code> - 如果这种文件对象不支持字节访问
</dd>
<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>
</dl> </li>
</ul> <a name="openOutputStream--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>openOutputStream</h4> <pre><a href="../../java/io/OutputStream.html" title="class in java.io">OutputStream</a> openOutputStream()
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
<div class="block">
获取此文件对象的OutputStream。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个OutputStream
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalStateException.html" title="class in java.lang">IllegalStateException</a></code> - 如果这个文件对象被打开以供阅读，并且不支持写入
</dd>
<dd>
<code><a href="../../java/lang/UnsupportedOperationException.html" title="class in java.lang">UnsupportedOperationException</a></code> - 如果这种文件对象不支持字节访问
</dd>
<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>
</dl> </li>
</ul> <a name="openReader-boolean-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>openReader</h4> <pre><a href="../../java/io/Reader.html" title="class in java.io">Reader</a> openReader(boolean ignoreEncodingErrors)
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
<div class="block">
<span>获取此对象的读者。</span>
<span>返回的读取器将替换不能用默认转换字符解码的字节。</span>
<span>此外，读者可以报告诊断，除非<code>ignoreEncodingErrors</code>是真的。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>ignoreEncodingErrors</code> - 忽略编码错误，如果为true
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一位读者
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalStateException.html" title="class in java.lang">IllegalStateException</a></code> - 如果这个文件对象被打开来写入并且不支持读取
</dd>
<dd>
<code><a href="../../java/lang/UnsupportedOperationException.html" title="class in java.lang">UnsupportedOperationException</a></code> - 如果这种文件对象不支持字符访问
</dd>
<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>
</dl> </li>
</ul> <a name="getCharContent-boolean-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getCharContent</h4> <pre><a href="../../java/lang/CharSequence.html" title="interface in java.lang">CharSequence</a> getCharContent(boolean ignoreEncodingErrors)
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
<div class="block">
<span>获取此文件对象的字符内容（如果可用）。</span>
<span>任何无法解码的字节都将被默认的转换字符替代。</span>
<span>此外，除非<code>ignoreEncodingErrors</code>为真，否则可能会报告<code>ignoreEncodingErrors</code> 。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>ignoreEncodingErrors</code> - 如果为true，则忽略编码错误
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<span>一个CharSequence（如果有的话）</span>
<span><code>null</code>否则</span>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalStateException.html" title="class in java.lang">IllegalStateException</a></code> - 如果这个文件对象被打开来写入并且不支持读取
</dd>
<dd>
<code><a href="../../java/lang/UnsupportedOperationException.html" title="class in java.lang">UnsupportedOperationException</a></code> - 如果这种文件对象不支持字符访问
</dd>
<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>
</dl> </li>
</ul> <a name="openWriter--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>openWriter</h4> <pre><a href="../../java/io/Writer.html" title="class in java.io">Writer</a> openWriter()
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
<div class="block">
获取此文件对象的Writer。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个作家
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalStateException.html" title="class in java.lang">IllegalStateException</a></code> - 如果此文件对象被打开以供阅读并且不支持写入
</dd>
<dd>
<code><a href="../../java/lang/UnsupportedOperationException.html" title="class in java.lang">UnsupportedOperationException</a></code> - 如果这种文件对象不支持字符访问
</dd>
<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>
</dl> </li>
</ul> <a name="getLastModified--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getLastModified</h4> <pre>long getLastModified()</pre>
<div class="block">
<span>获取上次修改此文件对象的时间。</span>
<span>时间是从时代（1970年1月1日00:00:00 GMT）开始测量的。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<span>该文件对象上次修改的时间;</span>
<span>如果文件对象不存在，则发生I / O错误，或者不支持该操作</span>
</dd>
</dl> </li>
</ul> <a name="delete--">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>delete</h4> <pre>boolean delete()</pre>
<div class="block">
<span>删除此文件对象。</span>
<span>如果发生错误，返回false。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<span>当且仅当此文件对象成功删除时为true;</span>
<span>否则为假</span>
</dd>
</dl> </li>
</ul> </li>
</ul> </li>
</ul>
</div>
</div>
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