SSM配置模版来一套

时间 2020-01-11

标签 ssm 配置模版一套繁體版

原文原文链接

建立maven工程

修改servlet版本为3.1

在tomcat目录下找到webapps-example->web->WEB-INF->web.xml
复制一段代码到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_3_1.xsd" version="3.1" metadata-complete="true">
            <!--须要修改servlet版本为3.1-->
</web-app>
复制代码

###修改目录结构php

src
   main
      java 
      resource
      webapp
   test
      java
      resource
复制代码

pom文档修改

junit 修改成4.11版本 3版本是编程 4是注解
补全依赖

<!--补全项目依赖-->
<!--1：
        日志   slf4j log4j logback common-logging
        slf4j 是规范/接口
        剩下的是实现
        这里实现slf4j + logback
-->
复制代码

<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-api</artifactId>
  <version>1.7.12</version>
</dependency>
<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-core</artifactId>
  <version>1.1.1</version>
</dependency>
<!--实现slf4j接口而且整合-->
<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-classic</artifactId>
  <version>1.1.1</version>
</dependency>
		
复制代码

<!--数据库相关依赖-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.46</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
    </dependency>

    <!--DAO框架 ： Mybatis-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.5</version>
    </dependency>
    <!--这个是mybatis本身整合的与spring的依赖-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

    <!--servlet web相关-->
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.5.4</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>

    <!--Spring-->
    <!--Spring核心-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <!--SpringDAO-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <!--SpringWEB-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
    <!--SpringTEST-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
复制代码

数据库阶段

数据库设计和建立

mybatis-confige.xml

<?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>
	    <!--配置全局属性-->
	    <settings>
	        <!--使用jdbc的getGeneratedKeys 获取数据库自增主键值-->
	        <setting name="useGeneratedKeys" value="true"/>
	        <!--使用列别名替换列名  默认true
	        select name as title from table  name(列名) title(别名)-->
	        <setting name="userColumnLabel" value="true"/>
	        <!--驼峰自动转换-->
	        <setting name="mapUnderscoreCamelCase" value="true"/>
	    </settings>
	</configuration>
复制代码

DAO层编写

mapper文件映射

mybatis 和 spring 整合

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/seckill
jdbc.username=root
jdbc.password=8023
#有个内置属性叫作username，因此这里最后都加前缀
复制代码

spring-dao.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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:contextp="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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd " >
    <!--配置数据库相关参数-->
    <!--1.加载jdbc须要的四个参数， 在properties中，能够用${driver}来取得去驱动的值-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
    <!--2.数据库链接池 c3p0-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--配置链接池属性-->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!--链接池的私有属性-->
        <!--最大数据链接，默认15个-->
        <property name="maxPoolSize" value="30"/>
        <!--最小数据链接，默认3个-->
        <property name="minPoolSize" value="10"/>
        <!--关闭链接后是否自动提交，默认false-->
        <property name="autoCommitOnClose" value="false"/>
        <!--默认超时为无限等待-->
        <!--<property name="checkoutTimeout" value="1000"/>-->
        <!--获取失败后重试几回-->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!--配置sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入链接池-->
        <property name="dataSource" ref="dataSource"/>
        <!--配置mybatis全局配置文件 mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
        <!--扫描entity,能够不用在mapper写全名 若是俩个就value="org.seckill.entity;org.seckill.entity1"-->
        <property name="typeAliasesPackage" value="org.seckill.entity"/>
        <!--扫描mapper文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>

    <!--配置扫描DAO接口的包，动态实现DAO接口，而且注入到spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--给出扫描DAO接口的包-->
        <property name="basePackage" value="org.seckill.dao"></property>
    </bean>
</beans>

复制代码

测试

`ctrl+shift+t` 动态生成test类
复制代码

进行测试java

SERVICE业务层代码(这里才开始注解)

业务代码

###spring托管service依赖（Spring IOC） [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-AIlcepDk-1578628614900)(i.imgur.com/Z8bbbsg.png)]mysql

###配置spring-service.xmlweb

<?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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:contextp="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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd " >
    <!--扫描service包下的全部使用了注解的类型-->
    <context:component-scan base-package="org.seckill.service"></context:component-scan>
</beans>
复制代码

事务控制

发生运行时错误的时候才会回滚
在spring-service.xml加入

<!--配置事务管理器-->
	    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
	        <!--注入数据库链接池-->
	        <property name="dataSource" ref="dataSource"/>
	    </bean>
	
	    <!--配置基于注解的声明式事务-->
	    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
复制代码

```
@Transactional
复制代码
```

WEB

restful接口

GET查询操做
POST添加/修改操做
DELETE删除
/模块/资源/{标示}/集合1/...
/user/{uid}/friends

web.xml配置

<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_3_1.xsd" version="3.1" metadata-complete="true">
          <!--须要修改servlet版本为3.1-->
    <!--配置DispatcherServlet-->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--配置SpringMVC须要的配置文件spring-dao.xml spring-web.xml spring-service.xml-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring-*.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <!--默认匹配全部请求-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>
复制代码

spring-web.xml配置

<?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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:contextp="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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd " >
    <!--开启注解模式-->
    <!-- 简化配置： 自动注册DefaultAnnotationHandlerMapping AnnotationMethodHandlerAdapter 提供一系列功能：数据绑定：数字和日期的format NumberFormat DataTimeFormat xml, json默认读写 -->
    <mvc:annotation-driven></mvc:annotation-driven>

    <!--静态资源默认servlet配置-->
    <!-- 加入对静态资源的处理 gif png js 容许使用 / 作总体映射 -->
    <mvc:default-servlet-handler></mvc:default-servlet-handler>

    <!--配置解析-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    
    <!--扫描web相关的bean-->
    <context:component-scan base-package="org.seckill.controller"/>
</beans>
复制代码