很奇怪呀。运行成功后，再登录又会跳到登录页面

package servlet;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

import javax.servlet.ServletException;

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.http.HttpEntity;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;

import org.apache.http.util.EntityUtils;

public class MainServlet extends HttpServlet {

//创建一个线程池

private ExecutorService service=Executors.newFixedThreadPool(10);

private void setCookie(/*String server,*/String ticket) {

service.submit(new Runnable() {

@Override

public void run() {

HttpPost httpPost=new HttpPost("http://localhost:8081/webApp1"+"/setCookie?ticket="+ticket);

CloseableHttpClient httpClient=null;

CloseableHttpResponse response=null;

try {

httpClient=HttpClients.createDefault();

response=httpClient.execute(httpPost);

HttpEntity  entity=response.getEntity();

String responseContent =EntityUtils.toString(entity, "utf-8");

/*SysteSm.out.println(responseContent);*/

}catch(Exception e){

e.printStackTrace();

} finally {

if(null!=response) {

try {

response.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

if(null!=httpClient) {

try {

httpClient.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}

});

}

@Override

protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

//如果请求类型的ServletPath是/main则运行下面代码

if(request.getServletPath().equals("/main")) {

//获取请求中发送过来的domains即其他app的url

String domains =request.getParameter("domains");

/* System.out.println(domains);*/

//获取请求中的tickct

String ticket=request.getParameter("ticket");

//把获得的domains按,分割成一个个app

for(String server:domains.split(",")

) {

//调用setCookie方法把cookie给每个app都添加上

/*System.out.println("server="+server);*/

if(server!=null&&!server.trim().equals("")) {

setCookie(ticket);

}

}

//转发到main.jsp,显示主要内容

request.getRequestDispatcher("main.jsp").forward(request, response);

//处理其他app以setCookie发过来的内容，存入Cookie

}else if(request.getServletPath().equals("/setCookie")) {

String ticket=request.getParameter("ticket");

System.out.println("ticket2="+ticket);

Cookie cookie=new Cookie("Ticket_Granting_Ticket",ticket);

cookie.setMaxAge(60*60);

cookie.setPath("/webApp2");

response.addCookie(cookie);

response.setCharacterEncoding("utf-8");

response.setContentType("application/text;charset=utf-8");

PrintWriter out=null;

try {

out =response.getWriter();

out.write("ok");

} catch(IOException e) {

e.printStackTrace();

}finally {

if(null!=out) {

out.close();

}

}

}

}

}