SSM使用JavaConfig使用详细步骤~

JavaConfig-SSM步骤：

1.pom.xml文件中导入jar包
2.配置四个配置文件
   WebConfig<==>web.xml
   ApplicationContextConfig<==>applicationContext.xml (spring)
   WebMvcConfig<==>webmvc-servlet.xml (spring MVC)
   mybatis-config.xml<==>mybatis-config.xml (mybatis)
3.DB 链接数据库
4.生成pojo实体类
5.创建mapper接口层
6.创建service服务层
7.创建controller控制层
8.创建view视图页面层 webapp-->static(css)->view(jsp)...

配置文件详细信息：
   一、WebConfig文件(web.xml)
       1.实现WebApplicationInitializer接口，重写onStartup方法
       2.方法中配置
           1)配置DispatchServlet（SpringMVC启动类）
           AnnotationConfigWebApplicationContext ac01 = new AnnotationConfigWebApplicationContext();
           ac01.register(WebMvcConfig.class);
           DispatcherServlet dispatcherServlet = new DispatchServlet(ac01);
           ServletRegistration.Dynamic dynamic = servletContext.addServlet("springMvc",dispatcherServlet);
           dynamic.setLoadOnStartup(1);
           dynamic.addMapping("/");

           2)配置ContextLoaderListener（spring启动类）
           AnnotationConfigWebApplicationContext ac02 = new AnnotationConfigWebApplicationContext();
           ac02.register(ApplicationContextConfig.class);
           servletContext.addListener(new ContextLoaderListener(ac02));

3)配置CharacterEncodingFilter（POST方式中文乱码）
           CharacterEncodingFilter encodingFilter = newCharacterEncodingFilter();
           encodingFilter.setEncoding("UTF-8");
           FilterRegistration.Dynamic dynamic = servletContext.addFilter("encoding",encodingFilter);
           dynamic.addMappingForUrlPatterns(null,false,"/*");
   二、ApplicationContextConfig文件(applicationContext.xml)
       1.在类上添加注解
           @Controller、
           @ComponentScan(basePackages="org.bx.ssm.service")、 //扫描service包
           @EnableTransactionManagement //开启事务管理
       2.配置数据源Druid
           @Bean
           public DruidDataSource dataSource(){
               DruidDataSource druidDataSource = new DruidDataSource(); //创建DruidDataSource数据源对象
               druidDataSource.setDriverClassName("com.mysql.jdbc.Driver"); //配置驱动
               druidDataSource.setUrl("jdbc:mysql:///his");
               druidDataSource.setUsername("root");
               druidDataSource.setPassword("root");
               return druidDataSource;
           }
       3.配置SqlSessionFactoryBean
           @Bean
           public SqlSessionFactoryBean sqlSessionFactory(){
               SqlSessionFactroyBean bean = new SqlSessionFactoryBean();
               bean.setDataSource(dataSource()); //引用数据源
               bean.setConfigLocation(new ClassPathResource("mybatis-config.xml"));
               Resource[] resoutces = {new ClassPathResource(mapper/RoleMapper.xml)};
               bean.setMapperLocations(resources);
               return bean;
           }
       4.mapper扫描配置
           @Bean
           public MapperScannerConfigurer mapperScannerConfigurer(){
               MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
               mapperScannerConfigurer.setBasePackage("org.bx.ssm.mapper");
               return mapperScannerConfigurer;
           }
       5.配置事务管理
           @Bean
           public DataSourceTransactionManager transactionManager(){
               DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
               transactionManager.setDataSource(dataSource());
               return transactionManager;
           }
   三、WebMvcConfig文件(webmvc-servlet.xml)
       1.在类上添加注解
           @Configuration、
           @EnableWebMvc、
           @ComponentScan(basePackages="org.bx.ssm.web") //扫描控制器
       并继承WebMvcConfigurerAdapter类
       2.配置viewResolver视图解析器
           @Bean
           public ViewResolver viewResolver(){
               InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
               viewResolver.setPrefix("/WEB-INF/classes/views/");
               viewResolver.setSuffix(".jsp");
               return viewResolver;
           }
       3.访问资源配置 > 重写addResourceHandlers方法
           public void addResourceHandlers(ResourceHandlerRegistry registry){
               registry.addResourceHandler("/webjars/**").addResourceLocations("/webjars/");//访问的虚拟路径
               registry.addResourceHandler("/static/**").addResourceLocations("/static/");//访问的静态资源
           }
   四、mybatis-config.xml文件
       <settings>
   
   <setting name="mapUnderscoreToCamelCase" value="true"/>
   
   <setting name="autoMappingBehavior" value="FULL"/>
   
   <setting name="logImpl" value="LOG4J"/>
   </settings>

SSM使用JavaConfig使用详细步骤~

猜你喜欢