public static String readAndClose(Reader reader) {
        try {
            return read(reader).toString();
        }
        catch (IOException e) {
            throw Lang.wrapThrow(e);
        }
        finally {
            safeClose(reader);
        }
    }
public static String readAndClose(Reader reader) {
        try {
            return read(reader).toString();
        }
        catch (IOException e) {
            throw Lang.wrapThrow(e);
        }
        finally {
            safeClose(reader);
        }
    }
public static String readAndClose ( Reader reader ) { try { return read ( reader ) . toString ( ) ; } catch ( IOException e ) { throw Lang . wrapThrow ( e ) ; } finally { safeClose ( reader ) ; } }
从一个文本流中读取全部内容并返回
<p>
<b style=color:red>注意</b>，它会关闭输入流

@param reader
文本输入流
@return 文本内容
@throws IOException
从一个文本流中读取全部内容并返回 <p > <b style = color : red > 注意< / b > ，它会关闭输入流