JAVA之springMVC

POM

<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>4.0.0modelVersion>

    <groupId>com.zggroupId>
    <artifactId>springdemonartifactId>
    <version>1.0-SNAPSHOTversion>
    <packaging>warpackaging>

    <dependencies>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>5.3.1version>
        dependency>

        
        <dependency>
            <groupId>ch.qos.logbackgroupId>
            <artifactId>logback-classicartifactId>
            <version>1.2.3version>
        dependency>

        
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>javax.servlet-apiartifactId>
            <version>3.1.0version>
            <scope>providedscope>
        dependency>

        
        <dependency>
            <groupId>org.thymeleafgroupId>
            <artifactId>thymeleaf-spring5artifactId>
            <version>3.0.12.RELEASEversion>
        dependency>
    dependencies>

project>
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web.xml

<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">

    
    <servlet>
        <servlet-name>SpringMVCservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:springmvc.xmlparam-value>
        init-param>

    servlet>
    <servlet-mapping>
        <servlet-name>SpringMVCservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>

web-app>
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spring-mvc.xml

<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/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">

    
    <context:component-scan base-package="com.zg.springtest.controller">context:component-scan>

    
    
    <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">

                        
                        <property name="prefix" value="/WEB-INF/templates/"/>

                        
                        <property name="suffix" value=".html"/>
                        <property name="templateMode" value="HTML5"/>
                        <property name="characterEncoding" value="UTF-8" />
                    bean>
                property>
            bean>
        property>
    bean>

beans>
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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";
    }

}

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web:

DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>TTTTtesttitle>
head>
<body>
<h1>helloworld!!!h1>
<a th:href="@{/hello}">测试SpringMVCa>

<a th:href="@{/abc}">测试SpringMVC_abca>

<form th:action="@{/abc}" method="post">
    <input type="submit" value="测试@RequestMapping的注解Method属性abc">
form>


<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!parametersa>

<a th:href="@{/adc/test}">测试?_abca>

<a th:href="@{/test/rest/1/username}">测试restFula>

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