JAVA之springMVC

POM

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.zg</groupId><artifactId>springdemon</artifactId><version>1.0-SNAPSHOT</version><packaging>war</packaging><dependencies><!-- SpringMVC --><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.3.1</version></dependency><!-- 日志 --><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.2.3</version></dependency><!-- ServletAPI --><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version><scope>provided</scope></dependency><!-- Spring5和Thymeleaf整合包 --><dependency><groupId>org.thymeleaf</groupId><artifactId>thymeleaf-spring5</artifactId><version>3.0.12.RELEASE</version></dependency></dependencies></project>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"version="4.0"><!--配置SpringMVC的前端控制器DispatcherServletSpringMVC的配置文件默认的位置和名称：位置：WEB-INF下名称：<servlet-name>-servlet.xml，当前配置下的配置文件名为SpringMVC-servlet.xmlurl-pattern中/和/*的区别：/：匹配浏览器向服务器发送的所有请求（不包括.jsp）/*：匹配浏览器向服务器发送的所有请求（包括.jsp）--><servlet><servlet-name>SpringMVC</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!--设置SpringMVC配置文件的位置和名称--><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springmvc.xml</param-value></init-param></servlet><servlet-mapping><servlet-name>SpringMVC</servlet-name><url-pattern>/</url-pattern></servlet-mapping></web-app>

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttps://www.springframework.org/schema/context/spring-context.xsd"><!--扫描控制器--><context:component-scan base-package="com.zg.springtest.controller"></context:component-scan><!-- 配置Thymeleaf视图解析器 --><!--配置thymeleaf的视图解析器--><bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver"><property name="order" value="1"/><property name="characterEncoding" value="UTF-8"/><property name="templateEngine"><bean class="org.thymeleaf.spring5.SpringTemplateEngine"><property name="templateResolver"><bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver"><!-- 视图前缀 --><property name="prefix" value="/WEB-INF/templates/"/><!-- 视图后缀 --><property name="suffix" value=".html"/><property name="templateMode" value="HTML5"/><property name="characterEncoding" value="UTF-8" /></bean></property></bean></property></bean></beans>

Controller

package com.zg.springtest.controller;import com.sun.org.glassfish.gmbal.ParameterNames;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;import javax.servlet.http.HttpServletRequest;/*** @Auther: zhaoss* @Date: 2022/8/6 - 08 - 06 - 2:31* @Description: com.zg.springtest.controller* @version: 1.0*/@Controller
public class MyController {@RequestMapping("/")public String Protal(){return "index";}//p127@RequestMapping(value = {"/hello","/abc"},method = RequestMethod.POST)public String ToSuccess(){return "success";}@PostMapping(value = {"/hello","/abc"},params = {"username"}, //必须有username才能访问headers = {"reference"} //必须有来源页)public String ToSuccess2(){return "success";}@GetMapping(value = {"/hello","/abc"},params = {"username","!password","age=20"})public String ToSuccess3(){return "success";}//路径里面有? 代表可以用任意字符替代@RequestMapping("/a?c/test")public String ToSucccess4(){return "success";}//RestFul@RequestMapping("test/rest/{id}/{username}")public String testRest(@PathVariable("id") Integer id, @PathVariable("username") String username){System.out.println("id, username"+ id+username);return "success";}//ServletAPI@RequestMapping("/param/ServletAPI")public String getParamByServletAPI(HttpServletRequest request){String username = request.getParameter("username");String password = request.getParameter("password");System.out.println("username:"+username+",password:"+password);return "success";}//通过控制器获得@RequestMapping("/param")public String getParamByController(String username, String password){System.out.println("username:"+username+",password:"+password);return "success";}//通过RequestParam绑定@RequestMapping("/param/RequestParam")public String getParamByRequestParam(@RequestParam(value = "username",required = false) String username, String password){System.out.println("username:"+username+",password:"+password);return "success";}}

web:

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>TTTTtest</title>
</head>
<body>
<h1>helloworld!!!</h1>
<a th:href="@{/hello}">测试SpringMVC</a><a th:href="@{/abc}">测试SpringMVC_abc</a><form th:action="@{/abc}" method="post"><input type="submit" value="测试@RequestMapping的注解Method属性abc">
</form><!--？后面是parm参数，前面是路径-->
<form th:action="@{/abc?username=admin}" method="post"><input type="submit" value="测试带有参数parameter属性hello">
</form><form th:action="@{/hello(username='admin')}" method="post"><input type="submit" value="测试带有参数parameter属性hello222">
</form><a href="/hello">测试绝对路径</a><a th:href="@{/abc}">测试!parameters</a><a th:href="@{/adc/test}">测试?_abc</a><a th:href="@{/test/rest/1/username}">测试restFul</a><form th:action="@{/param/ServletAPI}" method="post">用户名：<input type="text" name="username"> <br>密码：<input type="password" name="password"> <br><input type="submit" value="登录"> <br><form th:action="@{/param}" method="post">用户名1：<input type="text" name="username"> <br>密码1：<input type="password" name="password"> <br><input type="submit" value="登录1"> <br>
</form><form th:action="@{/param/RequestParam}" method="post">用户名2：<input type="text" name="username"> <br>密码2：<input type="password" name="password"> <br><input type="submit" value="登录2"> <br>
</form>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h1>测试成功！！!!!!!！</h1>
</body>
</html>

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