用户资料获取方法-优快云博客

本文介绍两种获取用户资料的方法：一种是通过HTTP POST请求发送数据，另一种是通过JSP页面接收并显示参数。提供了完整的Java代码示例，包括使用Apache HttpClient库进行POST和GET请求的具体实现。

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方法一：
（原始办法）
/*
* @remark: 获取用户资料
* @param: url发送数据的URL
* @param: param获取用户资料的参数
* @return: 获取用户资料状态信息
*/
String GetUser(String url, String param)
{
  URL httpurl = null;
  HttpURLConnection httpConn = null;
  String line = "";
   try
   {
     httpurl = new URL(url);
     httpConn = (HttpURLConnection)httpurl.openConnection();
     httpConn.setRequestMethod("POST");    //默认是post
     httpConn.setDoOutput(true);
     httpConn.setDoInput(true);
     PrintWriter outs = new PrintWriter(httpConn.getOutputStream());
     outs.print(param);
     outs.flush();
     outs.close();
     BufferedReader in = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
     while ((line = in.readLine()) != null)
    {
   if (line.indexOf("#") == -1)
        continue;
    return line;
    }
    in.close();

   }catch(Exception e)
   {
     return line;
   }
   finally
   {
     if(httpConn!=null)
       httpConn.disconnect();
   }
  return line;
}
该方法写的很简单，不够完善。
方法二：
<%@ page language="java" pageEncoding="GBK"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
    <%
        String name1=request.getParameter("name1");
        if(null!=name1){
            out.print(name1);out.print("<br>");
        }
        String name2=request.getParameter("name2");
        if(null!=name1){
            out.print(name2);out.print("<br>");
        }
    %>
</body>
</html>

接下来就就是我们的程序部分了:

import java.io.IOException;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;

public class Test {
    /**
     * @param args
     */
    public static void main(String[] args) {
        HttpClient client = new HttpClient();
        HttpMethod httpPost =getPostMethod();
        //HttpMethod httpPost =getGetMethod();
        client.getHostConfiguration().setHost("localhost", 8080, "http");
        try {
            int status = client.executeMethod(httpPost);
            if(status==200)
            {
                System.out.println(httpPost.getResponseBodyAsString());
            }
            else
            {
                System.out.println("页面请求返回值为："+status);
            }
        } catch (HttpException e) {
            e.printStackTrace(System.err);
        } catch (IOException e) {
            e.printStackTrace(System.err);
        }finally{
            httpPost.releaseConnection();
        }
    }
    /**
     * 使用POST方式提交数据
     * @return
     */
    private static HttpMethod getPostMethod(){
        PostMethod post = new PostMethod("/PostTest/index.jsp");
        NameValuePair simcard = new NameValuePair("name1","1330227");
        NameValuePair simcard2 = new NameValuePair("name2","kjasdfklalsf");
        post.setRequestBody(new NameValuePair[] { simcard,simcard2});
        return post;
    }
    /**
     * 使用GET方式提交数据
     * @return
     */
    private static HttpMethod getGetMethod(){
        return new GetMethod("/PostTest/index.jsp?name1=1330227&name2=asdfsdf");
    }
}