二：SpringMvc_RequestMapping

一：RequestMapping修饰类

package com.atguigu.springmvc.handlers;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping(value="/springmvc")
public class SpringMVCTest {

    private static final String SUCCESS = "success";
    
    /**
     * 1. @RequestMapping 除了修饰方法, 还可来修饰类 2. 1). 类定义处: 提供初步的请求映射信息。相对于 WEB 应用的根目录
     * 2). 方法处: 提供进一步的细分映射信息。 相对于类定义处的 URL。若类定义处未标注 @RequestMapping，则方法处标记的 URL
     * 相对于 WEB 应用的根目录
     */
    @RequestMapping("/testRequestMapping")
    public String testRequestMapping() {
        System.out.println("testRequestMapping");
        return SUCCESS;
    }
}

jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

    <a href="springmvc/testRequestMapping">testRequestMapping</a>
    
</body>
</html>

二：RequestMapping修饰请求方式

 

/**
     * 常用: 使用 method 属性来指定请求方式
     */
    @RequestMapping(value = "/testMethod", method = RequestMethod.POST)
    public String testMethod() {
        System.out.println("testMethod");
        return SUCCESS;
    }

 

jsp：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

    <form action="springmvc/testMethod" method="POST">
        <input type="submit" value="submit"/>
    </form>

    <br><br>
    <a href="springmvc/testMethod">Test Method</a>
    
</body>
</html>

 

三：RequestMapping修饰请求参数&请求头

/**
     * 了解: 可以使用 params 和 headers 来更加精确的映射请求. params 和 headers 支持简单的表达式.
     * 
     * @return
     */
    @RequestMapping(value = "testParamsAndHeaders", params = { "username",
            "age!=10" }, headers = { "Accept-Language=en-US,zh;q=0.8" })
    public String testParamsAndHeaders() {
        System.out.println("testParamsAndHeaders");
        return SUCCESS;
    }

jsp：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

    <a href="springmvc/testParamsAndHeaders?username=atguigu&age=10">Test ParamsAndHeaders</a>
    <br><br>
    
</body>
</html>

四：RequestMapping_Ant路径

/**
     * 了解: 可以使用 Ant匹配符
     * 
     * @return
     */
    @RequestMapping("/testAntPath/*/abc")
    public String testAntPath() {
        System.out.println("testAntPath");
        return SUCCESS;
    }

jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

    <a href="springmvc/testAntPath/mnxyz/abc">Test AntPath</a>
    <br><br>
    
</body>
</html>

 

 

posted @ 2018-08-02 11:03  老衲要还俗  阅读(97)  评论(0)    收藏  举报