【SSM】—— Spring+SpringMVC+MyBatis整合使用
目录
SSM整合流程
1、创建工程
2、SSM整合
1)Spring
2)MyBatis
3)SpringMVC
3、功能模块
表与实体类
dao（接口+自动代理）
service（接口+实现类）
controller
4、测试
SSM整合流程
1、创建工程
新建模块可参考：【SpringMVC】—— 如何配置使用SpringMVC（详细步骤）-CSDN博客
pom.xml加入以下坐标
UTF-8
1.8
1.8
org.springframework
spring-webmvc
5.2.10.RELEASE
org.springframework
spring-jdbc
5.2.10.RELEASE
org.springframework
spring-test
5.2.10.RELEASE
org.mybatis
mybatis
3.5.6
org.mybatis
mybatis-spring
1.3.0
mysql
mysql-connector-java
5.1.47
com.alibaba
druid
1.1.16
junit
junit
4.12
test
javax.servlet
javax.servlet-api
3.1.0
provided
com.fasterxml.jackson.core
jackson-databind
2.9.0
org.apache.tomcat.maven
tomcat7-maven-plugin
2.1
80
/
2、SSM整合
项目目录结构如下：
1)Spring
SpringConfig
@Configuration
@ComponentScan({"com.spring.service"})
@PropertySource("classpath:jdbc.properties")
@Import({JdbcConfig.class, MyBatisConfig.class})
public class SpringConfig {
}
2)MyBatis
MybatisConfig
public class MyBatisConfig {
@Bean
public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource){
SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
factoryBean.setDataSource(dataSource);
factoryBean.setTypeAliasesPackage("com.spring.domain");
return factoryBean;
}
@Bean
public MapperScannerConfigurer mapperScannerConfigurer(){
MapperScannerConfigurer msc = new MapperScannerConfigurer();
msc.setBasePackage("com.spring.dao");
return msc;
}
}
JdbcConfig
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;
@Bean
public DataSource dataSource(){
DruidDataSource dataSource = new DruidDataSource();
dataSource.setDriverClassName(driver);
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
return dataSource;
}
}jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm
jdbc.username=root
jdbc.password=你的密码3)SpringMVC
ServletConfig
public class ServletConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
protected Class[] getRootConfigClasses() {
return new Class[]{SpringConfig.class};
}
protected Class[] getServletConfigClasses() {
return new Class[]{SpringMvcConfig.class};
}
protected String[] getServletMappings() {
return new String[]{"/"};
}
}SpringMvcConfig
@Configuration
@ComponentScan("com.spring.controller")
@EnableWebMvc
public class SpringMvcConfig {
}3、功能模块
表与实体类
数据库建表
create database ssm;
use ssm;
create table tbl_book(
id int primary key auto_increment,
type varchar(20),
name varchar(50),
description varchar(255)
);insert into tbl_book values(1,'理论','操作系统','op')Book
public class Book {
private Integer id;
private String type;
private String name;
private String description;
public String toString(){
return "Book{" +
"id=" + id +
",type='" + type + '\'' +
", name='" + name + '\''+
",description='" + description + '\''+
'}';
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}dao（接口+自动代理）
BookDao
public interface BookDao {
@Insert("insert into tbl_book values(null,#{type},#{name},#{description})")
public void save(Book book);
@Update("update tbl_book set type = #{type}, name = #{name}, description = #{description} where id = #{id}")
public void update(Book book);
@Delete("delete from tbl_book where id = #{id}")
public void delete(Integer id);
@Select("select * from tbl_book where id = #{id}")
public Book getById(Integer id);
@Select("select * from tbl_book")
public List getAll();
}
service（接口+实现类）
BookService
public interface BookService {
/*
* 保存
*/
public boolean save(Book book);
/*
* 修改
*/
public boolean update(Book book);
/*
* 根据id删除
*/
public boolean delete(Integer id);
/*
* 根据id查询
*/
public Book getById(Integer id);
/*
* 查询全部
*/
public List getAll();
} BookServiceImpl
@Service
public class BookServiceImpl implements BookService {
@Autowired
private BookDao bookDao;
public boolean save(Book book) {
bookDao.save(book);
return true;
}
public boolean update(Book book) {
bookDao.update(book);
return true;
}
public boolean delete(Integer id) {
bookDao.delete(id);
return true;
}
public Book getById(Integer id) {
return bookDao.getById(id);
}
public List getAll() {
return bookDao.getAll();
}
}
controller
BookController
@RestController
@RequestMapping("/books")
public class BookController {
@Autowired
private BookService bookService;
@PostMapping
public boolean save(@RequestBody Book book) {
return bookService.save(book);
}
@PutMapping
public 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);
}
@GetMapping
public List getAll() {
return bookService.getAll();
}
}
4、测试
BookServiceTest
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringConfig.class)
public class BookServiceTest {
@Autowired
private BookService bookService;
@Test
public void testGetById(){
Book book = bookService.getById(1);
System.out.println(book);
}
@Test
public void testGetAll(){
List all = bookService.getAll();
System.out.println(all);
}
}