SpringMVC全注解不是你们那么玩的
前言：忙了段时间，忙得要死要活，累了一段时间，累得死去活来。
偶尔看到很多零注解配置SpringMVC,其实没有根本的零注解。
1)工程图一张：
web.xml在servlet3.0里面已经被注解完全替代，但是spring里面的DispatcherServlet并没有被使用，本打算修改下源码弄成3.0的,奈何没啥时间。
这是一个标准的SpringMVC，重点是AppConfig与DBConfig，在Web.xml里面申明两个类的配置路径：
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>com.test.commom.AppConfig</param-value>
</init-param>
<!-- use annotation replace xml configuration. @Configuration class is required. -->
<init-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
AppConfig：
@Configuration
@ComponentScan(basePackageClasses = AppConfig.class)
@EnableTransactionManagement //The code equals aop config or provider annotation transaction.
@EnableAspectJAutoProxy
@PropertySource({"classpath:site-jdbc.properties"})
public class AppConfig extends DBConfig {
/**
* 国际化
* @return
*/
@Bean
@Qualifier("messageSource")
public ResourceBundleMessageSource messageSource() {
ResourceBundleMessageSource bundleMessageSource = new ResourceBundleMessageSource();
bundleMessageSource.setBasename("i18n.u1wan-i18n");
bundleMessageSource.setUseCodeAsDefaultMessage(true);
return bundleMessageSource;
}
/**
* file upload
* @return
*/
@Bean
public CommonsMultipartResolver getCommonsMultipartResolver() {
return new CommonsMultipartResolver();
}
@Bean
public SessionLocaleResolver localeResolver() {
SessionLocaleResolver localeResolver = new SessionLocaleResolver();
return localeResolver;
}
@Bean
public HessianProxyFactory loadHessianProxyFactory() {
HessianProxyFactory hessianProxyFactory = new HessianProxyFactory();
return hessianProxyFactory;
}
/**
* 定义spring MVC返回显示视图
* @return
*/
@Bean
public TilesViewResolver viewResolver() {
return new TilesViewResolver();
}
@Bean
public LoginInterceptor loginInterceptor() {
return new LoginInterceptor();
}
@Bean
public SystemInterceptor systemInterceptor() {
return new SystemInterceptor();
}
@Bean
public PermissionsInterceptor permissionsInterceptor() {
return new PermissionsInterceptor();
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(loginInterceptor());
registry.addInterceptor(systemInterceptor());
registry.addInterceptor(permissionsInterceptor());
}
/**
* 定义xml显示位置
* @return
*/
@Bean
public TilesConfigurer tilesConfigurer() {
TilesConfigurer tilesConfigurer = new TilesConfigurer();
tilesConfigurer.setDefinitions(new String[] { "classpath*:config/tiles/page-tiles.xml", "classpath*:config/tiles/common-tiles.xml" });
return tilesConfigurer;
}
/**
* 定义Spring MVC显示
* @return
*/
@Bean
public CommonsMultipartResolver multipartResolver() {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
return multipartResolver;
}
}
DBConfig：
public class DBConfig extends DefaultWebConfig {
@Inject
Environment env;
/**
* 数据源
* @return
*/
@Bean(destroyMethod = "close")
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(env.getRequiredProperty("jdbc.driver.name"));
dataSource.setUrl(env.getRequiredProperty("jdbc.writedb.proxy.url"));
dataSource.setUsername(env.getRequiredProperty("jdbc.username"));
dataSource.setPassword(env.getRequiredProperty("jdbc.password"));
dataSource.setTestOnBorrow(true);
dataSource.setValidationQuery("select 1");
return dataSource;
}
@Bean
public SessionFactory sessionFactory() {
LocalSessionFactoryBuilder builder = new LocalSessionFactoryBuilder(dataSource())
.scanPackages(AppConfig.class.getPackage().getName());
builder.setProperty(org.hibernate.cfg.Environment.DIALECT, MySQL5Dialect.class.getName());
return builder.buildSessionFactory();
}
@Bean
public MongoDBAccess mongoDBAccess() {
MongoDBAccess mongoDBAccess = new MongoDBAccess();
mongoDBAccess.setMongoServerIpAddress(env.getRequiredProperty("mongodb.ip"));
mongoDBAccess.setCollectionName(env.getRequiredProperty("mongodb.collection"));
mongoDBAccess.setMongoServerPort(Integer.parseInt(env.getRequiredProperty("mongodb.port")));
mongoDBAccess.setDbName(env.getRequiredProperty("mongodb.db"));
mongoDBAccess.initDB();
return mongoDBAccess;
}
@Bean
public SessionLocaleResolver localeResolver() {
SessionLocaleResolver localeResolver = new SessionLocaleResolver();
return localeResolver;
}
/**
* hibernate事物
* @return
*/
@Bean
public HibernateTransactionManager transactionManager() {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory());
return transactionManager;
}
/**
* ORM 映射--hibernate
* @return
*/
@Bean
public HibernateAccess hibernateAccess() {
HibernateAccess hibernateAccess = new HibernateAccess();
hibernateAccess.setSessionFactory(sessionFactory());
return hibernateAccess;
}
/**
* JDBC--性能要求高场合
* @return
*/
@Bean
public JDBCAccess jdbcAccess() {
JDBCAccess jDBCAccess = new JDBCAccess();
jDBCAccess.setDataSource(dataSource());
return jDBCAccess;
}
@Bean(name = "hibernateTransaction")
public HibernateTransactionManager hibernateTransactionManager() {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory());
return transactionManager;
}
}
通过类的配置，完全替代spring的配置文件，基本上不用配置文件，个人比较喜欢no配置文件的东西。
举例一个Controler:
@Controller
public class WebsiteController {
@Inject
private WebsiteServer websiteServer;
@RequestMapping(value = "/website/test", method = RequestMethod.GET)
public String test(Map<String, Object> map, WebsiteRequest request) {
map.put("test", "test");
return "test_page";
}
@RequestMapping(value = "/website/testbody", method = RequestMethod.GET)
@ResponseBody
public String testBody(Map<String, Object> map) {
try {
websiteServer.test();
} catch (Exception e) {
e.printStackTrace();
}
return "test";
}
}
在第一个方法中，会去找test_page这个配置试图，该试图对应一个页面
第二个方法，直接返回到body中。
在page-tiles.xml与common-tiles.xml中设置对应视图位置：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 2.1//EN"
"http://tiles.apache.org/dtds/tiles-config_2_1.dtd">
<tiles-definitions>
<definition name="cookie-error" template="/WEB-INF/common/error/cookie-error.jsp"></definition>
<definition name="default-403" extends="intranet-template">
<put-attribute name="main-content1" value="/WEB-INF/common/error/default-403.jsp" />
<put-attribute name="title" value="Forbidden" />
</definition>
<definition name="default-404" template="/WEB-INF/common/error/default-404.jsp"></definition>
<definition name="default-error" extends="intranet-template">
<put-attribute name="main-content1" value="/WEB-INF/common/error/default-500.jsp" />
<put-attribute name="title" value="Server Error" />
</definition>
</tiles-definitions>