springmvc在jsp获取完整url地址含参数

标签: springmvc jsp
2018-08-24 阅读(605)

如果要在jsp页面用java代码获取完整url,直接用页面的request获取是获取不到spring的请求地址的。

spring controller的request和请求转发后jsp request是2个不同的对象。直接上结果:


例如请求地址为:http://localhost:8080/index/test?time=1&no=2


Controller打印:

request.getScheme()         = http
request.getServerName()     = localhost
request.getServerPort()     = 8080
request.getContextPath()    = 
request.getServletPath()    = /index/test
request.getRequestURI()     = /index/test
request.getRequestURL()     = http://localhost:8080/index/test
request.getQueryString()    = time=1&no=2
fullUrl1                    = http://localhost:8080/index/test?time=1&no=2
fullUrl2                    = http://localhost:8080/index/test?time=1&no=2


Jsp打印:

request.getScheme()        = http
request.getServerName()    = localhost
request.getServerPort()    = 8080
request.getContextPath()   = 
request.getServletPath()   = /WEB-INF/view/index/test.jsp
request.getRequestURI()    = /WEB-INF/view/index/test.jsp
request.getRequestURL()    = http://localhost:8080/WEB-INF/view/index/test.jsp
request.getQueryString()   = time=1&no=2
=====================================================
req.getScheme()        = http
req.getServerName()    = localhost
req.getServerPort()    = 8080
req.getContextPath()   = 
req.getServletPath()   = /index/test
req.getRequestURI()    = /index/test
req.getRequestURL()    = http://localhost:8080/index/test
req.getQueryString()   = time=1&no=2
fullUrl1               = http://localhost:8080/index/test?time=1&no=2
fullUrl2               = http://localhost:8080/index/test?time=1&no=2


获取完整url

String fullUrl1 = request.getScheme() + "://" + request.getServerName() + ":" + //协议 + 服务器域名
        (request.getServerPort()==80 ? "" : request.getServerPort()) + //端口
        request.getContextPath() + //项目的名字
        request.getServletPath() + //目录下全名称
        (request.getQueryString()!=null ? ("?"+request.getQueryString()) : ""); //参数
System.out.println("fullUrl1                    = "+fullUrl1);

String fullUrl2 = request.getRequestURL() + (request.getQueryString()!=null ? ("?"+request.getQueryString()) : "");
System.out.println("fullUrl2                    = "+fullUrl2);


如果jsp获取完整url就用

HttpServletRequest req = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();


IndexController.java

package com.cxq.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller
@RequestMapping(value = "/index")
public class IndexController {

    protected Logger logger = LoggerFactory.getLogger(this.getClass());

    @RequestMapping("/test")
    public String test(Model model, HttpServletRequest request, HttpServletResponse response) {
        System.out.println("request.getScheme()         = "+request.getScheme());
        System.out.println("request.getServerName()     = "+request.getServerName());
        System.out.println("request.getServerPort()     = "+request.getServerPort());
        System.out.println("request.getContextPath()    = "+request.getContextPath());
        System.out.println("request.getServletPath()    = "+request.getServletPath());
        System.out.println("request.getRequestURI()     = "+request.getRequestURI());
        System.out.println("request.getRequestURL()     = "+request.getRequestURL());
        System.out.println("request.getQueryString()    = "+request.getQueryString());

        String fullUrl1 = request.getScheme() + "://" +  //协议
                request.getServerName() + ":" + //服务器域名
                (request.getServerPort()==80 ? "" : request.getServerPort()) + //端口
                request.getContextPath() + //项目的名字
                request.getServletPath() + //目录下全名称
                (request.getQueryString()!=null ? ("?"+request.getQueryString()) : "");
        System.out.println("fullUrl1                    = "+fullUrl1);
        
        String fullUrl2 = request.getRequestURL() +
        (request.getQueryString()!=null ? ("?"+request.getQueryString()) : "");
        System.out.println("fullUrl2                    = "+fullUrl2);

        return "index/test";
    }


}


test.jsp

<%@ page import="org.springframework.web.context.request.ServletRequestAttributes" %>
<%@ page import="org.springframework.web.context.request.RequestContextHolder" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="zh-cn">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <title>test path</title>
        <meta name="keywords" content="" />
        <meta name="description" content="" />
        <link rel="shortcut icon" type="image/x-icon" href="favicon.ico"  media="screen"/>
        <link type="text/css" rel="stylesheet" href="/resources/css/base.css">
    </head>
    <body>

<pre>
<%
out.println("request.getScheme()        = "+request.getScheme());
out.println("request.getServerName()    = "+request.getServerName());
out.println("request.getServerPort()    = "+request.getServerPort());
out.println("request.getContextPath()   = "+request.getContextPath());
out.println("request.getServletPath()   = "+request.getServletPath());
out.println("request.getRequestURI()    = "+request.getRequestURI());
out.println("request.getRequestURL()    = "+request.getRequestURL());
out.println("request.getQueryString()   = "+request.getQueryString());

out.println("=====================================================");

HttpServletRequest req = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
out.println("req.getScheme()        = "+req.getScheme());
out.println("req.getServerName()    = "+req.getServerName());
out.println("req.getServerPort()    = "+req.getServerPort());
out.println("req.getContextPath()   = "+req.getContextPath());
out.println("req.getServletPath()   = "+req.getServletPath());
out.println("req.getRequestURI()    = "+req.getRequestURI());
out.println("req.getRequestURL()    = "+req.getRequestURL());
out.println("req.getQueryString()   = "+req.getQueryString());

String fullUrl1 = req.getScheme() + "://" + req.getServerName() + ":" +
        (req.getServerPort()==80 ? "" : req.getServerPort()) +
        req.getContextPath() +
        req.getServletPath() +
        (req.getQueryString()!=null ? ("?"+req.getQueryString()) : "");
out.println("fullUrl1        = "+fullUrl1);

String fullUrl2 = req.getRequestURL() +
(req.getQueryString()!=null ? ("?"+req.getQueryString()) : "");
out.println("fullUrl2        = "+fullUrl2);
%>
</pre>

    </body>
</html>


request获取完整url地址.png


工程目录.png




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