这是发送对象的servlet文件
package Test;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
class TransferData{
int a;
int b;
int c;
}
public class myservlet extends HttpServlet {
/**
* Constructor of the object.
*/
public myservlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
/*response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
out.println("-------------");
String str=request.getParameter("max");
int max=Integer.parseInt(str);
int sum=0;
for(int i=1;i<=max;i++){
sum+=i;
}
out.println(sum);
*/
this.doPost(request, response);//service默认走的是doGet方法，调用doPost方法，才会走doPost,否则不走doPost方法
/*
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();*/
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
String urlstr="http://xz-20140612mxua:8080/J2eeTest/test/getObject";
try{
URL url=new URL(urlstr);
HttpURLConnection conn=(HttpURLConnection)url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setConnectTimeout(10000);
conn.setReadTimeout(20000);
conn.connect();
TransferData td=new TransferData();
out.println("--------------------0");
td.a=10;
td.b=20;
td.c=200;
out.println("--------------------1");
OutputStream outputstream=conn.getOutputStream();//创建输出流，并把该输出流关联到创建的联系conn上
out.println("--------------------2");
ObjectOutputStream oos = new ObjectOutputStream(outputstream);//创建对象输出流
out.println("--------------------3");
out.println(td);
oos.writeObject(td);//通过对象输出流输出对象?有问题控制台只能输出到-----3这里
out.println("--------------------4");
out.println(td.a);
out.println("--------------------5");
}catch(Exception e){}
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
public void init() throws ServletException {
// Put your code here
}
}
这是接受对象的servlet文件
package Test;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class getObject extends HttpServlet {
/**
* Constructor of the object.
*/
public getObject() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
/*response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
*/
this.doPost(request,response);
/*
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();*/
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println("--------------------0");
try{
InputStream in = request.getInputStream();
out.println("--------------------1");
ObjectInputStream ois = new ObjectInputStream(in);//?有问题
out.println("--------------------2");
TransferData td1 = (TransferData)(ois.readObject());
out.println("--------------------3");
System.out.println(td1.a);
out.println("--------------------4");
System.out.println(td1.b);
out.println("--------------------5");
System.out.println(td1.c);
out.println("--------------------6");
}catch(Exception e){}
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
困扰很久了，求大神帮解答，问题不解决，感觉后面的东西没法继续学。
