SSM配置模版來一套

時間 2020-01-11

標籤 ssm 配置模版一套简体版

原文原文鏈接

建立maven工程

修改servlet版本爲3.1

在tomcat目錄下找到webapps-example->web->WEB-INF->web.xml
複製一段代碼到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">
            <!--須要修改servlet版本爲3.1-->
</web-app>
複製代碼

###修改目錄結構php

src
   main
      java 
      resource
      webapp
   test
      java
      resource
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pom文檔修改

junit 修改成4.11版本 3版本是編程 4是註解
補全依賴

<!--補全項目依賴-->
<!--1：
        日誌   slf4j log4j logback common-logging
        slf4j 是規範/接口
        剩下的是實現
        這裏實現slf4j + logback
-->
複製代碼

<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>
<!--實現slf4j接口而且整合-->
<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-classic</artifactId>
  <version>1.1.1</version>
</dependency>
		
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<!--數據庫相關依賴-->
    <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>
    <!--這個是mybatis本身整合的與spring的依賴-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

    <!--servlet web相關-->
    <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>
複製代碼

數據庫階段

數據庫設計和建立

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>
	    <!--配置全局屬性-->
	    <settings>
	        <!--使用jdbc的getGeneratedKeys 獲取數據庫自增主鍵值-->
	        <setting name="useGeneratedKeys" value="true"/>
	        <!--使用列別名替換列名  默認true
	        select name as title from table  name(列名) title(別名)-->
	        <setting name="userColumnLabel" value="true"/>
	        <!--駝峯自動轉換-->
	        <setting name="mapUnderscoreCamelCase" value="true"/>
	    </settings>
	</configuration>
複製代碼

DAO層編寫

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
#有個內置屬性叫作username，因此這裏最後都加前綴
複製代碼

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 " >
    <!--配置數據庫相關參數-->
    <!--1.加載jdbc須要的四個參數， 在properties中，能夠用${driver}來取得去驅動的值-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
    <!--2.數據庫鏈接池 c3p0-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--配置鏈接池屬性-->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!--鏈接池的私有屬性-->
        <!--最大數據鏈接，默認15個-->
        <property name="maxPoolSize" value="30"/>
        <!--最小數據鏈接，默認3個-->
        <property name="minPoolSize" value="10"/>
        <!--關閉鏈接後是否自動提交，默認false-->
        <property name="autoCommitOnClose" value="false"/>
        <!--默認超時爲無限等待-->
        <!--<property name="checkoutTimeout" value="1000"/>-->
        <!--獲取失敗後重試幾回-->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!--配置sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入鏈接池-->
        <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"/>
        <!--掃描entity,能夠不用在mapper寫全名 若是倆個就value="org.seckill.entity;org.seckill.entity1"-->
        <property name="typeAliasesPackage" value="org.seckill.entity"/>
        <!--掃描mapper文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>

    <!--配置掃描DAO接口的包，動態實現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"/>
        <!--給出掃描DAO接口的包-->
        <property name="basePackage" value="org.seckill.dao"></property>
    </bean>
</beans>

複製代碼

測試

`ctrl+shift+t` 動態生成test類
複製代碼

進行測試java

SERVICE業務層代碼(這裏纔開始註解)

業務代碼

###spring託管service依賴（Spring IOC） [外鏈圖片轉存失敗,源站可能有防盜鏈機制,建議將圖片保存下來直接上傳(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 " >
    <!--掃描service包下的全部使用了註解的類型-->
    <context:component-scan base-package="org.seckill.service"></context:component-scan>
</beans>
複製代碼

事務控制

發生運行時錯誤的時候纔會回滾
在spring-service.xml加入

<!--配置事務管理器-->
	    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
	        <!--注入數據庫鏈接池-->
	        <property name="dataSource" ref="dataSource"/>
	    </bean>
	
	    <!--配置基於註解的聲明式事務-->
	    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
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```
@Transactional
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```

WEB

restful接口

GET查詢操做
POST添加/修改操做
DELETE刪除
/模塊/資源/{標示}/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">
          <!--須要修改servlet版本爲3.1-->
    <!--配置DispatcherServlet-->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--配置SpringMVC須要的配置文件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>
        <!--默認匹配全部請求-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>
複製代碼

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 " >
    <!--開啓註解模式-->
    <!-- 簡化配置： 自動註冊DefaultAnnotationHandlerMapping AnnotationMethodHandlerAdapter 提供一系列功能：數據綁定：數字和日期的format NumberFormat DataTimeFormat xml, json默認讀寫 -->
    <mvc:annotation-driven></mvc:annotation-driven>

    <!--靜態資源默認servlet配置-->
    <!-- 加入對靜態資源的處理 gif png js 容許使用 / 作總體映射 -->
    <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>
    
    <!--掃描web相關的bean-->
    <context:component-scan base-package="org.seckill.controller"/>
</beans>
複製代碼

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