大家下，socket编程怎么关闭输入输出流

public class Server2 extends Thread {    Socket socket;    public Server2(Socket socket, String uuid) {        super(uuid);        this.socket = socket;    }    @Override    public void run() {        System.out.println("running..");        try {            this.readSocket();            this.writeSocket();        } catch (Exception ioe) {            ioe.printStackTrace();        } finally {            this.closeSocket();        }    }    /**     * 将response信息发送到socket客户端     *      * @param response     */    private void readSocket() {        try {            InputStream ins = socket.getInputStream();            DataInputStream dins = new DataInputStream(ins);            byte[] size = new byte[10];            dins.read(size);            System.out.println("size is "+new String(size));            byte[] xml = new byte[Integer.parseInt(new String(size))];            dins.readFully(xml);            System.out.println("xml is "+new String(xml));            ins.close();            dins.close();        } catch (IOException e) {            e.printStackTrace();        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 将response信息发送到socket客户端     *      * @param response     */    private void writeSocket() {        try {            OutputStream outs = socket.getOutputStream();            DataOutputStream douts = new DataOutputStream(outs);            byte[] b = this.compress();            DecimalFormat format=new DecimalFormat("0000000000");               String size = format.format(b.length);            douts.write(size.getBytes());            douts.write(b);            douts.flush();            douts.close();            outs.close();        } catch (IOException e) {            e.printStackTrace();        }    }    private byte[] compress() {        String xml = "<aa><bb>测试xml</bb></aa>";        return GZip.compress(xml.getBytes());    }        /**     * 一个线程处理完后，关闭socket连接     */    public void closeSocket() {        try {            this.socket.close();        } catch (IOException e) {            System.out.println("关闭socket异常");            e.printStackTrace();        }    }    public static void main(String args[]) {        ExecutorService exService = Executors.newFixedThreadPool(30);        ServerSocket serverSocket = null;        try {            serverSocket = new ServerSocket(9999);            System.out.println("服务成功启动了！");        } catch (IOException e) {            e.printStackTrace();        }        while (true) {            try {                Socket socket = serverSocket.accept();                socket.setSoLinger(true, 3600); //未发送完全的数据可以再等3600秒才关闭底层socket                    System.out.println("接收到一个客户端请求！");                UUID uuid = UUID.randomUUID();                Server2 sp = new Server2(socket, uuid.toString());                exService.execute(sp);                //sp.start();                //sp.join();// 主线程要等待该线程终止。            } catch (Exception ne) {                ne.printStackTrace();            }        }    }}

public class SocketClient2 extends Thread {    static int count=0;    @Override    public void run() {        try {                byte[] ww = "<root></root>".getBytes();                Socket socket = new Socket("localhost",9999);                    socket.setSoTimeout(2*60*1000);                OutputStream outs = socket.getOutputStream();                DecimalFormat format=new DecimalFormat("0000000000");                   String size = format.format(ww.length);                //用来通知长度的报文头                outs.write(size.getBytes());7.HibernateTemplate.execute(HibernateTemplate.java:372)    at org.springframework.orm.hibernate3.HibernateTemplate.load(HibernateTemplate.java:502)    at org.springframework.orm.hibernate3.HibernateTemplate.load(HibernateTemplate.java:496)    at com.baidu.manageSystem.machineRoom.dao.EmployeeDao.deleteById(EmployeeDao.java:157)    at com.baidu.manageSystem.machineRoom.controller.EmployeeAction.deleteById(EmployeeAction.java:313)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)    at java.lang.reflect.Method.invoke(Method.java:597)    at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)    at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)    at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)    at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)    at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)    at com.baidu.manageSystem.common.filter.EncodingFilter.doFilter(EncodingFilter.java:32)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)    at java.lang.Thread.run(Thread.java:619)