在servlet中GET请求可以通过HttpServletRequest的getRequestURL方法和getQueryString()得到完整的请求路径和请求所有参数列表，POST的需要getPa...

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转自：http://www.zuidaima.com/share/1550463555308544.htm

**在servlet中GET请求可以通过HttpServletRequest的getRequestURL方法和getQueryString()得到完整的请求路径和请求所有参数列表，POST的需要getParameterMap()方法遍历得到，不论GET或POST都可以通过getRequestURL+getParameterMap()来得到请求完整路径

** [java] view plain copy print?在CODE上查看代码片派生到我的代码片

package com.zuidaima                          
import java.io.IOException;  
import java.io.PrintWriter;  
import java.util.Map;  
  
import javax.servlet.ServletException;  
import javax.servlet.http.HttpServlet;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
  
public class GetParams extends HttpServlet {  
    private static final long serialVersionUID = 1L;  
  
    public GetParams() {  
        super();  
    }  
  
    protected void doGet(HttpServletRequest request,  
            HttpServletResponse response) throws ServletException, IOException {  
        PrintWriter writer = response.getWriter();  
        writer.println("GET " + request.getRequestURL() + " "  
                + request.getQueryString());  
  
        Map params = request.getParameterMap();  
        String queryString = "";  
        for (String key : params.keySet()) {  
            String[] values = params.get(key);  
            for (int i = 0; i < values.length; i++) {  
                String value = values[i];  
                queryString += key + "=" + value + "&";  
            }  
        }  
        // 去掉最后一个空格  
        queryString = queryString.substring(0, queryString.length() - 1);  
        writer.println("GET " + request.getRequestURL() + " " + queryString);  
    }  
  
    protected void doPost(HttpServletRequest request,  
            HttpServletResponse response) throws ServletException, IOException {  
        PrintWriter writer = response.getWriter();  
        Map params = request.getParameterMap();  
        String queryString = "";  
        for (String key : params.keySet()) {  
            String[] values = params.get(key);  
            for (int i = 0; i < values.length; i++) {  
                String value = values[i];  
                queryString += key + "=" + value + "&";  
            }  
        }  
        // 去掉最后一个空格  
        queryString = queryString.substring(0, queryString.length() - 1);  
        writer.println("POST " + request.getRequestURL() + " " + queryString);  
    }  
}  
  

转载于:https://my.oschina.net/u/1052192/blog/760099