服务器端代码:
package com.sz.EXexcel;import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.util.ArrayList;
import com.sun.tools.javac.v8.util.Hashtable;public class RecieveServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GB2312";
public void init() throws ServletException {
}
public void service(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
System.out.println("hello");
try {
ObjectInputStream ois = new ObjectInputStream(request.getInputStream());
ois.readLong();
}catch(Exception ex) {
ex.printStackTrace();
}
}
public void destroy() {
}
}
package com.sz.EXexcel;import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.util.ArrayList;
import com.sun.tools.javac.v8.util.Hashtable;public class RecieveServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GB2312";
public void init() throws ServletException {
}
public void service(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
System.out.println("hello");
try {
ObjectInputStream ois = new ObjectInputStream(request.getInputStream());
ois.readLong();
}catch(Exception ex) {
ex.printStackTrace();
}
}
public void destroy() {
}
}
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没有打印任何东西
ObjectInputStream ois = new ObjectInputStream(request.getInputStream());
ois.readLong();
// 在这加上
System.out.println(ois);试试
}catch(Exception ex) {
ex.printStackTrace();
}
加上 System.out.println(ois);试试
谁解决了再加100分!
import javax.servlet.*;
import javax.servlet.http.*;
public class ShowMemservlet
extends Httpservlet
{
public void doGet(HttpservletRequest
req, HttpservletResponse res)
throws servletException, IOException
{
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
Runtime rt = Runtime.getRuntime();
out.println(rt.freeMemory());
out.println(rt.totalMemory());
}
}applet的代码:
private void refresh()
throws MalformedURLException,
IOException
{
URL url = new URL(getCodeBase(),
"/servlet/ShowMemServlet");
URLConnection con = url.openConnection();
con.setUseCaches(false);
InputStream in = con.getInputStream();
DataInputStream textStream;
textStream = new DataInputStream(in);
String line1 = textStream.readLine();
String line2 = textStream.readLine();
double freeMem = Double.parseDouble(line1);
double totalMem = Double.parseDouble(line2);
int usedMem = totalMem - freeMem;
int percentUsed =
(int) 100 *(usedMem / totalMem);
meter.setLength(percentUsed);
}资源:http://kb.csdn.net/java/Articles/200507/efabb6c8-d536-4a94-bcf7-0ed14895153e.html