纯注解驱动smm集合

详细的ssm整合 在上一篇博客中有介绍
项目结构

1. Web.xml
2. applciationContext.xml
3. spring-mvc.xml
4. UserDao.xml

• 去掉以上的文件 使用注解进行执行

Jdbc.properties

项目结构

首先去掉对应的UserDao.xml创建类jdbcConfig类进行等价替换

public class JdbcConfig {//  使用注入的形式  读取properties文件的属性值//   使用private 定义其中的属性    在SpringConfig  中加载属性//   进行set注入@Value("${jdbc.driverClass}")private String driver;@Value("${jdbc.url}")private String url;@Value("${jdbc.username}")private String username;@Value("${jdbc.password}")private String password;//  定义DataSource的Bean@Bean("dataSource")public DataSource getDataSource(){DruidDataSource ds = new DruidDataSource();ds.setDriverClassName(driver);ds.setUrl(url);ds.setUsername(username);ds.setPassword(password);return ds;}
}

创建对应的MyBatisConfig

public class MyBatisConfig {// 定义MyBatis的核心连接工厂bean@Bean//  参数使用自动装配的形式加载dataSource  为set注入提供数据public SqlSessionFactoryBean getSqlSessionFactoryBean(@Autowired DataSource dataSource){SqlSessionFactoryBean ssfb = new SqlSessionFactoryBean();ssfb.setTypeAliasesPackage("cn.yl.domain");ssfb.setDataSource(dataSource);// 增加 引入分页插件  PagehelperInterceptor interceptor = new PageInterceptor();Properties properties = new Properties();properties.setProperty("helperDialect","mysql");properties.setProperty("reasonable","true");interceptor.setProperties(properties);ssfb.setPlugins(new Interceptor[]{interceptor});return ssfb;}//   定义MyBatis的映射扫描@Beanpublic MapperScannerConfigurer getMapperScannerConfigurer(){MapperScannerConfigurer msc = new MapperScannerConfigurer();msc.setBasePackage("cn.yl.dao");return msc;}
}

配置SpringConfig

@Configuration
@ComponentScan(value="cn.yl" ,excludeFilters =
@ComponentScan.Filter(type= FilterType.ANNOTATION,classes = {Controller.class}))
@PropertySource("classpath:jdbc.properties")
@EnableTransactionManagement()
@Import({MyBatisConfig.class,JdbcConfig.class})
public class SpringConfig {@Bean("transactionManager")public DataSourceTransactionManager  getTxManager(@Autowired DataSource dataSource){DataSourceTransactionManager  tm = new DataSourceTransactionManager();tm.setDataSource(dataSource);return  tm;}}

配置Sprig-mvc.xml
@Configuration 配置类

@Configuration
@ComponentScan("cn.yl.controller")
@EnableWebMvc
public class SpringMvcConfig {
}

工具类
代码格式固定 其中SpringMvcConfig与SpringConfig二者互相依赖

/** 中文编码  前端控制器拦截所有请求* */public class ServketContainershitConfig extends AbstractDispatcherServletInitializer {//创建servlet应用上下文环境 使用注解的方式加载SpringMVC配置类中的信息，并加载成WEB专用的Application对象//该对象放入了ServletContext范围，后期在整个WEb容器中可以随时调用@Overrideprotected WebApplicationContext createServletApplicationContext() {//创建注解配置web应用上下文环境AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();//将SpringMVC配置类注册到web应 用上下文环境ctx.register(SpringMvcConfig.class);return ctx;}//设置拦截所有路径请求//代替：DispatcherServlet配置@Overrideprotected String[] getServletMappings() {return new String[]{"/"};}@Overrideprotected WebApplicationContext createRootApplicationContext() {AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();//将SpringMVC配置类注册到web应 用上下文环境ctx.register(SpringConfig.class);return ctx;}//中文乱码处理 使用filter过滤器实现@Overridepublic void onStartup(ServletContext servletContext) throws ServletException {super.onStartup(servletContext);CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();characterEncodingFilter.setEncoding("UTF-8");FilterRegistration.Dynamic registration = servletContext.addFilter("characterEncodingFilter", characterEncodingFilter);registration.addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST,DispatcherType.FORWARD,DispatcherType.INCLUDE),false,"/*");}
}