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51--SpringMVC源码阅读环境搭建

51--SpringMVC源码阅读环境搭建

作者: 闲来也无事 | 来源:发表于2019-02-16 12:51 被阅读7次
    1.引

    前面的章节已经分析了Spring的IOC容器、AOP、事物管理等,今天开始分析SpringMVC的实现。当然需要先搭建一下SpringMVC源码的阅读环境,因为之前的代码分析都是非Web环境的。

    2.新建Gradle模块
    2.1 右键spring源码根目录,新建模块,弹出窗口选择Gradle --> 同时勾选java和web
    在这里插入图片描述
    2.2 选择根目录并输入ArtifactId,点击确定
    在这里插入图片描述
    2.3 完善项目结构
    1. 通过前两步的操作,得到一个空的web项目,接下来就要将其完善。打开build.gradle配置文件,并配置:
    plugins {
        id 'java'
        id 'war'
    }
    
    group 'org.springframework'
    version '5.1.0.RC1'
    
    sourceCompatibility = 1.8
    
    repositories {
        mavenCentral()
    }
    
    dependencies {
        compile(project(":spring-beans"))
        compile(project(":spring-core"))
        optional(project(":spring-aop"))
        optional(project(":spring-context"))
        optional(project(":spring-oxm"))
        optional(project(":spring-jdbc"))
        optional(project(":spring-web"))
        optional(project(":spring-webmvc"))
        optional(project(":spring-test"))
    
        optional group: 'javax.servlet', name: 'javax.servlet-api', version: '3.1.0'
        optional group: 'asm', name: 'asm', version: '3.3.1'
        optional group: 'junit', name: 'junit', version: '4.12'
        optional group: 'cglib', name: 'cglib', version: '2.2.2'
        optional group: 'org.jsoup', name: 'jsoup', version: '1.11.3'
        optional group: 'commons-dbcp', name: 'commons-dbcp', version: '1.4'
        optional group: 'mysql', name: 'mysql-connector-java', version: '5.1.38'
    
        optional("javax.annotation:javax.annotation-api:1.3.2")
        optional("javax.ejb:javax.ejb-api:3.2")
        optional("javax.enterprise.concurrent:javax.enterprise.concurrent-api:1.0")
        optional("javax.inject:javax.inject:1")
        optional("javax.interceptor:javax.interceptor-api:1.2.2")
        optional("javax.money:money-api:1.0.3")
        optional("javax.validation:validation-api:1.1.0.Final")
        optional("javax.xml.ws:jaxws-api:2.3.0")
        optional("org.aspectj:aspectjweaver:${aspectjVersion}")
        optional("org.codehaus.groovy:groovy:${groovyVersion}")
        optional("org.beanshell:bsh:2.0b5")
        optional("joda-time:joda-time:2.10")
        optional("org.hibernate:hibernate-validator:5.4.2.Final")
        optional("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
        optional("org.jetbrains.kotlin:kotlin-stdlib:${kotlinVersion}")
        testCompile("org.codehaus.groovy:groovy-xml:${groovyVersion}")
        testCompile("org.codehaus.groovy:groovy-jsr223:${groovyVersion}")
        testCompile("org.codehaus.groovy:groovy-test:${groovyVersion}")
        testCompile("org.apache.commons:commons-pool2:2.6.0")
        testCompile("javax.inject:javax.inject-tck:1")
        testRuntime("javax.xml.bind:jaxb-api:2.3.0")
        testRuntime("org.glassfish:javax.el:3.0.1-b08")
        testRuntime("org.javamoney:moneta:1.3")
    }
    
    1. 在resources资源文件下添加log4j.properties和spring-context.xml配置文件
    # Output pattern : date [thread] priority category - message   FATAL 0  ERROR 3  WARN 4  INFO 6  DEBUG 7 
    log4j.rootLogger=INFO, Console, RollingFile
    
    #Console
    log4j.appender.Console=org.apache.log4j.ConsoleAppender
    log4j.appender.Console.layout=org.apache.log4j.PatternLayout
    log4j.appender.Console.layout.ConversionPattern=%d %-5p [%c{5}] - %m%n
    
    #RollingFile
    log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
    log4j.appender.RollingFile.File=mylog.log
    log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
    log4j.appender.RollingFile.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
    
    #log4j.logger.java.sql=DEBUG
    
    #Springframework level
    #log4j.logger.org.springframework=ERROR
    
    #Hibernate level
    #log4j.logger.org.hibernate=ERROR
    #log4j.logger.org.hibernate.cache.ehcache.AbstractEhcacheRegionFactory=ERROR
    #log4j.logger.org.hibernate.search.impl.ConfigContext=ERROR
    #log4j.logger.net.sf.ehcache.config.CacheConfiguration=ERROR
    
    #Project defalult level
    #log4j.logger.org.activiti.engine.impl.persistence=DEBUG
    #log4j.logger.org.apache.shiro=DEBUG
    log4j.logger.com.thinkgem.jeesite=DEBUG
    log4j.logger.com.thinkgem.jeesite.common.security.shiro=WARN
    log4j.logger.com.thinkgem.jeesite.common.utils.JedisUtils=WARN
    log4j.logger.com.thinkgem.jeesite.modules.sys.web.LoginController=WARN
    log4j.logger.com.thinkgem.jeesite.modules.oa.dao.OaNotifyDao.findCount=WARN
    
    
    <?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"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"
           default-lazy-init="true">
    
        <!-- 采用注释的方式配置bean -->
        <context:annotation-config />
    
        <!-- proxy-target-class默认"false",更改为"ture"使用CGLib动态代理 -->
        <aop:aspectj-autoproxy/>
    
        <!-- 开启自动扫包 -->
        <context:component-scan base-package="com.lyc.cn">
            <!--制定扫包规则,不扫描@Controller注解的JAVA类,其他的还是要扫描 -->
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
        </context:component-scan>
    
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/pages/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    
    </beans>
    
    1. 在WEB-INF下添加web.xml和example-servlet.xml配置文件
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
        <!-- 项目名 -->
        <display-name>example</display-name>
        
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    
        <servlet>
            <servlet-name>example</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>example</servlet-name>
            <url-pattern>/example/</url-pattern>
        </servlet-mapping>
        
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-context.xml</param-value>
        </context-param>
        
        <filter>
            <filter-name>characterEncodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <init-param>
                <param-name>encoding</param-name>
                <param-value>UTF-8</param-value>
            </init-param>
            <init-param>
                <param-name>forceEncoding</param-name>
                <param-value>true</param-value>
            </init-param>
        </filter>
        <filter-mapping>
            <filter-name>characterEncodingFilter</filter-name>
            <url-pattern>/</url-pattern>
        </filter-mapping>
    
    </web-app>
    
    <?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"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    
        <!-- 开启注解模式驱动 -->
        <!-- springmvc中配置这个标签默认注册三个bean:RequestMappingHandlerMapping,RequestMappingHandlerAdapter,DefaultHandlerExceptionResolver -->
        <mvc:annotation-driven />
    
        <!-- 扫包 -->
        <context:component-scan base-package="com.lyc.cn"></context:component-scan>
    
        <!-- 视图渲染 jsp/freemaker/velocity -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 制定页面存放的路径 -->
            <property name="prefix" value="/WEB-INF/pages/"></property>
            <!-- 文件的后缀 -->
            <property name="suffix" value=".jsp"></property>
        </bean>
    
    </beans>
    
    1. 在WEB-INF下新建pages文件夹并添加sayHello.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>
        sayHello...<br/>
        ${myBean.name}<br/>
        ${myBean.age}
    </body>
    </html>
    
    1. 添加TestController和MyBean
    package com.lyc.cn.controller;
    
    import com.lyc.cn.vo.MyBean;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    import org.springframework.web.servlet.ModelAndView;
    
    @Controller
    public class TestController {
    
        @RequestMapping("sayHello")
        @ResponseBody
        public ModelAndView sayHello(int age, String name) {
            ModelAndView mav = new ModelAndView();
            MyBean bean = new MyBean(age, name);
            mav.addObject("myBean", bean);
            mav.setViewName("sayHello");
            System.out.println(bean.toString());
            return mav;
        }
    }
    
    package com.lyc.cn.vo;
    
    public class MyBean {
        private int age;
        private String name;
    
        public MyBean(int age, String name) {
            this.age = age;
            this.name = name;
        }
    
        public int getAge() {
            return age;
        }
    
        public void setAge(int age) {
            this.age = age;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    }
    
    3.配置tomcat并运行项目

    tomcat配置比较简单,不赘述了。启动项目在地址栏输入:http://localhost:8080/example/sayHello?age=12&name=Jack

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