java实现响应重定向发送post请求操作示例

return "redirect:/index";

Map parameter = new HashMap();

public void setParameter(String key, String value) {
  this.parameter.put(key, value);
}

//url参数为请求地址
public void sendByPost(String url) throws IOException {
  this.response.setContentType("text/html");
  response.setCharacterEncoding("utf-8");
  response.setContentType("text/html;charset=utf-8");
  PrintWriter out = this.response.getWriter();
  out.println("");
  out.println("");
  out.println(" ");
  out.println(" ");
  out.println(" ");
  out.println(" \n");
  out.println(" ");
  out.println(" ");
  out.println("");
  Iterator it = this.parameter.keySet().iterator();
  while (it.hasNext()) {
    String key = it.next();
    out.println("");
  }
  out.println("");
  out.println(" ");
  out.println(" ");
  out.println("");
  out.flush();
  out.close();
}

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
 
/**
 * 用POST方式 重定向
 *
 * @author royFly
 */
public class RedirectWithPost {
  Map parameter = new HashMap();
  HttpServletResponse response;
 
  public RedirectWithPost(HttpServletResponse response) {
    this.respOnse= response;
  }
 
  public void setParameter(String key, String value) {
    this.parameter.put(key, value);
  }
 
  public void sendByPost(String url) throws IOException {
    this.response.setContentType("text/html");
    response.setCharacterEncoding("utf-8");
    response.setContentType("text/html;charset=utf-8");
    PrintWriter out = this.response.getWriter();
    out.println("");
    out.println("");
    out.println(" ");
    out.println(" ");
    out.println(" ");
    out.println(" \n");
    out.println(" ");
    out.println(" ");
    out.println("");
    Iterator it = this.parameter.keySet().iterator();
    while (it.hasNext()) {
      String key = it.next();
      out.println("");
    }
    out.println("");
    out.println(" ");
    out.println(" ");
    out.println("");
    out.flush();
    out.close();
  }
}

RedirectWithPost redirectWithPost = new RedirectWithPost(response);
//redirectUrl请求地址
String redirectUrl = "/login";

redirectWithPost.setParameter("username", nickname);
redirectWithPost.setParameter("password", openid);

redirectWithPost.sendByPost(redirectUrl);