使用idea建立maven多模块开发以及ssm整合
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建立主要工程项目,建立pom.xml,该pom用于连接各个模块之间的pom
先建立一个整体项目my-shop的pom,用于包含各个模块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.funtl</groupId>
<artifactId>my-shop</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>my-shop-dependencies</module>
<module>my-shop-commons</module>
<module>my-shop-domain</module>
<module>my-shop-web-admin</module>
<module>my-shop-web-ui</module>
<module>my-shop-web-api</module>
</modules>
</project>
```
image.png
建立依赖模块dependencies,项目中所有的依赖包都在该模块下管理
image.png
<?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>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<artifactId>my-shop-dependencies</artifactId>
<packaging>pom</packaging>
<name>my-shop-dependencies</name>
<description></description>
<properties>
<!-- 环境配置 -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<!-- 统一的依赖管理 -->
<commons-lang3.version>3.5</commons-lang3.version>
<jstl.version>1.2</jstl.version>
<log4j.version>1.2.17</log4j.version>
<servlet-api.version>3.1.0</servlet-api.version>
<slf4j.version>1.7.25</slf4j.version>
<spring.version>4.3.17.RELEASE</spring.version>
<durid.version>1.1.6</durid.version>
<mysql-conector-java.version>5.1.46</mysql-conector-java.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis-spring.version>1.3.1</mybatis-spring.version>
<spring-jdbc.version>4.3.17.RELEASE</spring-jdbc.version>
<spring-test.version>4.3.17.RELEASE</spring-test.version>
<junit.version>4.12</junit.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- Spring Begin -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Spring End -->
<!-- Servlet Begin -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- Servlet End -->
<!-- Log Begin -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- Log End -->
<!-- Commons Begin -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<!-- Commons End -->
<!--Druid Begin-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${durid.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-conector-java.version}</version>
</dependency>
<!--Druid End-->
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring-jdbc.version}</version>
</dependency>
<!--end-->
<!--junit-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-test.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<!-- Compiler 插件, 设定 JDK 版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
</plugins>
<!-- 资源文件配置 -->
<resources>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
</build>
</project>
建立通用模块commons,一下通用的类放在该模块下
<?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>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../my-shop-dependencies/pom.xml</relativePath>
</parent>
<artifactId>my-shop-commons</artifactId>
<packaging>jar</packaging>
<name>my-shop-commons</name>
<description></description>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</dependency>
</dependencies>
</project>
建立实体类模块
<?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>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../my-shop-dependencies/pom.xml</relativePath>
</parent>
<artifactId>my-shop-domain</artifactId>
<packaging>jar</packaging>
<name>my-shop-domain</name>
<description></description>
</project>
建立后台模块
<?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>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../my-shop-dependencies/pom.xml</relativePath>
</parent>
<artifactId>my-shop-web-admin</artifactId>
<packaging>war</packaging>
<name>my-shop-web-admin</name>
<description></description>
<dependencies>
<!-- Spring Begin -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<!-- Spring End -->
<!-- Servlet Begin -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- Servlet End -->
<!-- Commons Begin -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>com.funtl</groupId>
<artifactId>my-shop-commons</artifactId>
<version>${project.parent.version}</version>
</dependency>
<dependency>
<groupId>com.funtl</groupId>
<artifactId>my-shop-domain</artifactId>
<version>${project.parent.version}</version>
</dependency>
<!--Druid Begin-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--Druid End-->
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<!--junit-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
</project>
建立接口api模块
<?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>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../my-shop-dependencies/pom.xml</relativePath>
</parent>
<artifactId>my-shop-web-api</artifactId>
<packaging>war</packaging>
<name>my-shop-web-api</name>
<description></description>
<dependencies>
<dependency>
<groupId>com.funtl</groupId>
<artifactId>my-shop-commons</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
</project>
建立ui模块
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.funtl</groupId>
<artifactId>my-shop-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../my-shop-dependencies/pom.xml</relativePath>
</parent>
<artifactId>my-shop-web-ui</artifactId>
<packaging>war</packaging>
<name>my-shop-web-ui</name>
<description></description>
<dependencies>
<dependency>
<groupId>com.funtl</groupId>
<artifactId>my-shop-commons</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
</project>
在admin模块整合ssm
在pom中添加代码,引入上面的依赖包
image.png
建立以下的文件夹
image.png
1.在web.xml中配置spring自动注册容器
<!--配置spring自动注册容器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-context*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
在resource文件夹下建立spring配置文件spring-context.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/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!--除了controller注解,controller注解交给SpringMVC-->
<context:component-scan base-package="com.funtl.my.shop">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
</beans>
2.在web.xml添加SpringMVC的配置
<!--配置SpringMVC核心分发器-->
<servlet>
<servlet-name>springServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/spring-mvc*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
在resource文件夹下建立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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<description>Spring MVC Configuration</description>
<!-- 加载配置属性文件 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:myshop.properties"/>
<!-- 使用 Annotation 自动注册 Bean,只扫描 @Controller -->
<context:component-scan base-package="com.funtl.my.shop" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 默认的注解映射的支持 -->
<mvc:annotation-driven />
<!-- 定义视图文件解析 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="${web.view.prefix}"/>
<property name="suffix" value="${web.view.suffix}"/>
</bean>
<!-- 静态资源映射 -->
<mvc:resources mapping="/static/**" location="/static/" cache-period="31536000"/>
</beans>
3.到目前为止就已经把spring和springmvc整合到一起了,最后需要整合mybatis,mybatis需要连接池,虽然它有自带的连接池,但是效率较低，这里使用阿里的durid连接池,所以把durid连接池整合到spring,
其实整合原理就是把它们的bean创建起来,而一般框架都有两种设置配置的方式,一种是读取xml，一直就是直接在new的对象中配置,所以才可以整合到spring,个人理解
spring整合durid
<?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/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 加载配置属性文件 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:myshop.properties"/>
<!-- 数据源配置, 使用 Druid 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<!-- 数据源驱动类可不写，Druid默认会自动根据URL识别DriverClass -->
<property name="driverClassName" value="${jdbc.driverClass}"/>
<!-- 基本属性 url、user、password -->
<property name="url" value="${jdbc.connectionURL}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<!-- 配置初始化大小、最小、最大 -->
<property name="initialSize" value="${jdbc.pool.init}"/>
<property name="minIdle" value="${jdbc.pool.minIdle}"/>
<property name="maxActive" value="${jdbc.pool.maxActive}"/>
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="60000"/>
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000"/>
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="300000"/>
<property name="validationQuery" value="${jdbc.testSql}"/>
<property name="testWhileIdle" value="true"/>
<property name="testOnBorrow" value="false"/>
<property name="testOnReturn" value="false"/>
<!-- 配置监控统计拦截的filters -->
<property name="filters" value="stat"/>
</bean>
</beans>
这样spring就已经创建了数据源,durid还有servlet在web.xml配置servlet用于可视化监控,可以设置可以不设置,可以在浏览器中输入localhost:8080/durid/,前面根据你自己的域名
<!--配置durid视图servlet-->
<servlet>
<servlet-name>DruidStatView</servlet-name>
<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>DruidStatView</servlet-name>
<url-pattern>/druid/*</url-pattern>
</servlet-mapping>
4.把durid 整合到 mybatis
mybatis的配置
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 全局参数 -->
<settings>
<!-- 打印 SQL 语句 -->
<setting name="logImpl" value="STDOUT_LOGGING" />
<!-- 使全局的映射器启用或禁用缓存。 -->
<setting name="cacheEnabled" value="false"/>
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 -->
<setting name="lazyLoadingEnabled" value="true"/>
<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 -->
<setting name="aggressiveLazyLoading" value="true"/>
<!-- 是否允许单条 SQL 返回多个数据集 (取决于驱动的兼容性) default:true -->
<setting name="multipleResultSetsEnabled" value="true"/>
<!-- 是否可以使用列的别名 (取决于驱动的兼容性) default:true -->
<setting name="useColumnLabel" value="true"/>
<!-- 允许 JDBC 生成主键。需要驱动器支持。如果设为了 true，这个设置将强制使用被生成的主键，有一些驱动器不兼容不过仍然可以执行。 default:false -->
<setting name="useGeneratedKeys" value="false"/>
<!-- 指定 MyBatis 如何自动映射 数据基表的列 NONE：不映射 PARTIAL：部分 FULL:全部 -->
<setting name="autoMappingBehavior" value="PARTIAL"/>
<!-- 这是默认的执行类型 （SIMPLE: 简单； REUSE: 执行器可能重复使用prepared statements语句；BATCH: 执行器可以重复执行语句和批量更新） -->
<setting name="defaultExecutorType" value="SIMPLE"/>
<!-- 使用驼峰命名法转换字段。 -->
<setting name="mapUnderscoreToCamelCase" value="true"/>
<!-- 设置本地缓存范围 session:就会有数据的共享 statement:语句范围 (这样就不会有数据的共享 ) defalut:session -->
<setting name="localCacheScope" value="SESSION"/>
<!-- 设置 JDBC 类型为空时,某些驱动程序 要指定值, default:OTHER，插入空值时不需要指定类型 -->
<setting name="jdbcTypeForNull" value="NULL"/>
</settings>
</configuration>
spring整合mybatis
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 配置 SqlSession -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 用于配置对应实体类所在的包，多个 package 之间可以用 ',' 号分割 -->
<property name="typeAliasesPackage" value="com.funtl.my.shop.entity"/>
<!-- 用于配置对象关系映射配置文件所在目录 -->
<property name="mapperLocations" value="classpath:/mapper/**/*.xml"/>
<property name="configLocation" value="classpath:/mybatis-config.xml"></property>
</bean>
<!-- 扫描 Mapper -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.funtl.my.shop.web.admin.dao" />
</bean>
</beans>
最后是整体项目的配置参数,也可以把这些参数移出去单独配置,这里是放在一起好管理
myshop.properties
\#============================#
\#==== JDBC settings ====#
\#============================#
\# JDBC
\# MySQL 8.x: com.mysql.cj.jdbc.Driver
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.connectionURL=jdbc:mysql://localhost:3306/myshop?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=root
\# JDBC Pool
jdbc.pool.init=1
jdbc.pool.minIdle=3
jdbc.pool.maxActive=20
\# JDBC Test
jdbc.testSql=SELECT 'x' FROM DUAL
\#============================#
\#==== Framework settings ====#
\#============================#
\# 设置springmvc的前缀和后缀，这样在使用的时候就不需要写路径和#后缀了
web.view.prefix=/WEB-INF/views/
web.view.suffix=.jsp
测试
非常ok
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