SSM 框架整合

1 整合配置

1.1 流程

1.2 Spring 整合 MyBatis

1.3 Spring 整合 SpringMVC

1.4 配置代码

JdbcConfig.java

public class JdbcConfig {@Value("${jdbc.driver}")private String driver;@Value("${jdbc.url}")private String url;@Value("${jdbc.username}")private String username;@Value("${jdbc.password}")private String password;@Beanpublic DataSource dataSource() {DruidDataSource dataSource = new DruidDataSource();dataSource.setDriverClassName(driver);dataSource.setUrl(url);dataSource.setUsername(username);dataSource.setPassword(password);return dataSource;}@Beanpublic PlatformTransactionManager transactionManager(DataSource dataSource) {DataSourceTransactionManager ds = new DataSourceTransactionManager();ds.setDataSource(dataSource);return ds;}}

MyBatisConfig.java

public class MyBatisConfig {@Beanpublic SqlSessionFactoryBean sqlSessionFactoryBean (DataSource dataSource) {SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();factoryBean.setDataSource(dataSource);factoryBean.setTypeAliasesPackage("com.it.domain");return factoryBean;}@Beanpublic MapperScannerConfigurer mapperScannerConfigurer() {MapperScannerConfigurer msc = new MapperScannerConfigurer();msc.setBasePackage("com.it.dao");return msc;}
}

ServletConfig.java

public class ServletConfig extends AbstractAnnotationConfigDispatcherServletInitializer {@Overrideprotected Class<?>[] getRootConfigClasses() {return new Class[]{SpringConfig.class};}@Overrideprotected Class<?>[] getServletConfigClasses() {return new Class[]{SpringMvcConfig.class};}@Overrideprotected String[] getServletMappings() {return new String[]{"/"};}
}

SpringConfig.java

@Configuration
@ComponentScan({"com.it.service"})
@PropertySource("jdbc.properties")
@Import({JdbcConfig.class, MyBatisConfig.class})
@EnableTransactionManagement  //开启注解事务驱动
public class SpringConfig {
}

SpringMvcConfig.java

@Configuration
@ComponentScan("com.it.controller")
@EnableWebMvc
public class SpringMvcConfig {}

2 功能模块开发

BookController.java

@RestController
@RequestMapping("/books")
public class BookController {@Autowiredprivate BookService bookService;@PostMappingpublic boolean save(@RequestBody Book book) {return bookService.save(book);}@PutMappingpublic boolean update(@RequestBody Book book) {return bookService.update(book);}@DeleteMapping("/{id}")public boolean delete(@PathVariable Integer id) {return bookService.delete(id);}@GetMapping("/{id}")public Book getById(@PathVariable Integer id) {return bookService.getById(id);}@GetMappingpublic List<Book> getAll() {return bookService.getAll();}}