详解如何整合SpringMVC和mybatis

这篇文章主要介绍了springmvc与mybatis实例详解的相关资料,非常不错,具有参考借鉴价值,需要的朋友可以参考下

MyBatis 本是apache的一个开源项目iBatis, 2010年这个项目由apache software foundation 迁移到了google code，并且改名为MyBatis 。

一、逆向工程生成基础信息

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE generatorConfigurationPUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN""http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration><context id="testTables" targetRuntime="MyBatis3"><commentGenerator><!-- 是否去除自动生成的注释 true：是 ： false:否 --><property name="suppressAllComments" value="true" /></commentGenerator><!--数据库连接的信息：驱动类、连接地址、用户名、密码 --><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://localhost:3307/mybatis" userId="root"passaspku.com/pc/softtech/office/word/" target="_blank"><u>word</u>="jalja"></jdbcConnection><!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal --><javaTypeResolver><property name="forceBigDecimals" value="false" /></javaTypeResolver><!-- targetProject:生成PO类的位置 --><javaModelGenerator targetPackage="com.jalja.springmvc_mybatis.model.pojo"targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /><!-- 从数据库返回的值被清理前后的空格 --><property name="trimStrings" value="true" /></javaModelGenerator><!-- targetProject:mapper映射文件生成的位置 --><sqlMapGenerator targetPackage="com.jalja.springmvc_mybatis.mapper"targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /></sqlMapGenerator><!-- targetPackage：mapper接口生成的位置 --><javaClientGenerator type="XMLMAPPER"targetPackage="com.jalja.springmvc_mybatis.mapper"targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /></javaClientGenerator><!-- 指定数据库表 --><table tableName="items"></table><table tableName="orders"></table><table tableName="orderdetail"></table><table tableName="user"></table></context></generatorConfiguration> public static void main(String[] arhs) throws Exception{List<String> warnings = new ArrayList<String>();boolean overwrite = true;File configFile = new File("src.main.resources/generator.xml");ConfigurationParser cp = new ConfigurationParser(warnings);Configuration config = cp.parseConfiguration(configFile);DefaultShellCallback callback = new DefaultShellCallback(overwrite);MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);myBatisGenerator.generate(null);}

二、springMVC与Mybatis整合 各个配置文件

1.项目结构

2、各个文件的核心代码

a.web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app 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/javaeehttp://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <context-param><param-name>contextConfigLocation</param-name><param-value> classpath:spring/applicationContext-*.xml </param-value></context-param><listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:log4j.proper<a>本文来源gao*daima.com搞@代#码&网6</a>ties</param-value> </context-param> <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>3000</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener> <!-- post请求乱码 --><filter><filter-name>SpringEncodingFilter</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>SpringEncodingFilter</filter-name><url-pattern>*.do</url-pattern></filter-mapping> <!-- springMvc前端控制器 --> <servlet> <servlet-name>springMvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <!-- contextConfigLocation加载 springMvc的配置文件(处理器适配器 ，映射器) 如果不配置默认加载的是 /WEB-INF/servlet名称-servlet.xml(springMvc-servlet.xml)--><param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMvc</servlet-name> <!--1、*.do :DispatcherServlet 解析所有 *.do 结尾的访问2、 / :DispatcherServlet解析所有请求（包括静态资源） 这种配置可以实现restful风格的url3、/*: 这种配置最终要转发到一个jsp页面 --><url-pattern>*.do</url-pattern> </servlet-mapping> <!-- springMvc前端控制器 RestFul <servlet> <servlet-name>springMvc_rest</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext-springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMvc_rest</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> --><session-config><session-timeout>30</session-timeout></session-config></web-app>

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