SpringBoot取代ssm

Myth丶恋晨 2022-05-24 10:52 135阅读 0赞

## 1.POM.XML配置文件 ##

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.12.RELEASE</version>
    </parent>
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            
    
            
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.3.1</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <optional>true</optional> 
            </dependency>
            
    
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>4.3.2.RELEASE</version>
            </dependency>
    
            
            <dependency>
                <groupId>com.Oracle</groupId>
                <artifactId>ojdbc14</artifactId>
                <version>10.2.0.4.0</version>
            </dependency>
        </dependencies>
    
        
        <build>
            <finalName>Maven_SpringBoot_Demo1</finalName>
            
            <plugins>
                
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <fork>true</fork>
                    </configuration>
                </plugin>
            </plugins>
        </build>

## 2.SpringBoot启动文件 ##

@SpringBootApplication
    public class StartProject{
    
        public static void main(String[] args) {
            SpringApplication.run(StartProject.class, args);
        }
    }

## 3.application.properties配置文件 ##

#配置springmvc的视图解析器
    spring.mvc.view.prefix=/
    spring.mvc.view.suffix=.jsp
    
    #配置数据库
    spring.datasource.driver-class=oracle.jdbc.driver.OracleDriver
    spring.datasource.url=jdbc:oracle:thin:127.0.0.1:1521:orcl
    spring.datasource.username=scott
    spring.datasource.password=tiger
    
    #配置mapper的映射文件
    mybatis.mapper-locations=classpath*:cn/hzy/persistence/*.xml

## 4.剩下的就是ssm基本配置写法（原来的持久化里的注解@Repository换成@Mapper） ##

@RestController
    @RequestMapping(value="/dept")
    public class DeptController { 
    
        //实现类名为DeptServiceImpl但是首字母小写
        @Autowired
        @Qualifier(value="deptServiceImpl")
        //@Resource(name="deptServiceImpl")
        private DeptService deptService;
    
        @RequestMapping(value="/find")
        public String find() throws Exception{
            List<Dept> list = deptService.findAll();
            for (Dept dept : list) {
                System.out.println("部门名称:"+dept.getDname()+"部门地址"+dept.getLoc());
            }
            return "success";
        }
    }

@Service
    //当异常为Exception就回滚，所有的异常都继承与Exception
    @Transactional(rollbackFor=Exception.class)
    public class DeptServiceImpl implements DeptService{ 
    
        @Autowired
        private DeptPersistence deptPersistence;
    
        @Override
        public List<Dept> findAll() throws Exception{
            List<Dept> list = deptPersistence.findAll();
            try {
                int a = 2 / 0 ;
            } catch (Exception e) {
                System.err.println(e.getMessage());
            }
            return list;
        }
    }

@Mapper
    public interface DeptPersistence {
        public List<Dept> findAll();
    }