基于java配置SSM，eclipse
新建maven，web项目
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项目结构：
jar包
spring和DispatcherServlet上下文
public class DemoWebApplicationInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { @Override protected Class [] getRootConfigClasses() { // TODO Auto-generated method stub return new Class [] {RootConfig.class}; } @Override protected Class [] getServletConfigClasses() { // TODO Auto-generated method stub return new Class [] {WebConfig.class}; } @Override protected String[] getServletMappings() { // TODO Auto-generated method stub return new String[] {"/"}; } } DispatcherServlet
@Configuration @EnableWebMvc @ComponentScan(basePackages = {"com.getword.controller"}) public class WebConfig extends WebMvcConfigurerAdapter { @Bean public ViewResolver viewResolver() { InternalResourceViewResolver resolver = new InternalResourceViewResolver(); resolver.setPrefix("/WEB-INF/views/"); resolver.setSuffix(".jsp"); resolver.setExposeContextBeansAsAttributes(true); return resolver; } /** * 静态资源 */ @Override public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) { // TODO Auto-generated method stub configurer.enable(); } } spring 上下文
@Configuration @ComponentScan(basePackages = {"com.getword"}, excludeFilters = {@Filter(type = FilterType.ANNOTATION, value = EnableWebMvc.class)}) @Import(DataSourceConfig.class) public class RootConfig { @Bean public BeanNameAutoProxyCreator autoProxyCreator() { BeanNameAutoProxyCreator autoProxyCreator = new BeanNameAutoProxyCreator(); autoProxyCreator.setProxyTargetClass(true); // 设置要创建代理的那些Bean的名字 autoProxyCreator.setBeanNames("*Service"); autoProxyCreator.setInterceptorNames("transactionInterceptor"); return autoProxyCreator; } } DataSourceConfig
@Configuration @MapperScan("com.getword.dao") public class DataSourceConfig { private final static Logger LOG = Logger.getLogger(DataSourceConfig.class); private String driver = "com.mysql.jdbc.Driver";; private String url = "jdbc:mysql://localhost:3306/spring?characterEncoding=UTF-8&serverTimezone=UTC"; private String username = "root"; private String password = "123"; @Bean public BasicDataSource dataSource() { LOG.info("Initialize the BasicDataSource..."); BasicDataSource dataSource = new BasicDataSource(); dataSource.setDriverClassName(driver); dataSource.setUrl(url); dataSource.setUsername(username); dataSource.setPassword(password); return dataSource; } // mybatis的配置 @Bean public SqlSessionFactoryBean sqlSessionFactoryBean() throws IOException { ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver(); SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean(); sqlSessionFactoryBean.setDataSource(dataSource()); sqlSessionFactoryBean.setMapperLocations(resourcePatternResolver.getResources("classpath*:mappers/*.xml")); sqlSessionFactoryBean.setTypeAliasesPackage("com.getword.domain");// 别名，让*Mpper.xml实体类映射可以不加上具体包名 return sqlSessionFactoryBean; } // 事务管理器 对mybatis操作数据库事务控制，spring使用jdbc的事务控制类 @Bean(name = "transactionManager") public DataSourceTransactionManager dataSourceTransactionManager() { DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(); dataSourceTransactionManager.setDataSource(dataSource()); return dataSourceTransactionManager; } @Bean(name = "transactionInterceptor") public TransactionInterceptor interceptor() { TransactionInterceptor interceptor = new TransactionInterceptor(); interceptor.setTransactionManager(dataSourceTransactionManager()); Properties transactionAttributes = new Properties(); transactionAttributes.setProperty("save*", "PROPAGATION_REQUIRED"); transactionAttributes.setProperty("del*", "PROPAGATION_REQUIRED"); transactionAttributes.setProperty("update*", "PROPAGATION_REQUIRED"); transactionAttributes.setProperty("get*", "PROPAGATION_REQUIRED,readOnly"); transactionAttributes.setProperty("find*", "PROPAGATION_REQUIRED,readOnly"); transactionAttributes.setProperty("*", "PROPAGATION_REQUIRED"); interceptor.setTransactionAttributes(transactionAttributes); return interceptor; } } 注意：mapper的命名空间必须和对应的接口的全路径一致！！！
idea，从maven简单java项目转web项目
新建maven项目
- 新建maven项目
- 填写group id和artifictId，next
- 输入项目名称，finish
- 配置maven，次步骤最后在新建项目之前
项目结果如下：
添加web模块
- 项目结构->Modules->add->web
- 删除web.xml
- 设置web项目根路径
- 添加artifact
- 配置Tomcat
- 此时项目结构
此时可以访问webapp下的静态文件了
- jar包，pom.xml
注意:使用maven时也要添加servlet依赖，注意作用域。此时可以使用servlet了
spring配置
同eclipse。