Springboot project to build (1) - create, integrate mysql / oracle, druid configuration, simple CRUD

Source Address: https://github.com/VioletSY/article-base

1: Creating a basic project: https://blog.csdn.net/mousede/article/details/81285693

2: Integration oracle:

(1) add a dependency (pom.xml):

        <!--jdbc -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.oracle/ojdbc6 -->
        <dependency>
            <groupId>com.jslsolucoes</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.1.0</version>
        </dependency>

(2) Configuration Database (application.properties):

spring.datasource.url=jdbc:oracle:thin:@127.0.0.1:1521:shitan
spring.datasource.username=xzzc
spring.datasource.password=xzzc
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver

3, the integration of MySQL

(1) add a dependency (pom.xml):

        <!-- mysql驱动  -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

(2) Configuration Database (application.properties):

#MySQL数据源
spring.datasource.url=jdbc:mysql://localhost:3306/base?useUnicode=true&characterEncoding=utf8
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=123456

Note: I wrote something single data source, after completion of the test function to connect to Oracle Configuration Notes for the oracle took

4, database connection pool configuration

(1) add a dependency (pom.xml):

        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.6</version>
        </dependency>

 

(2) adding configure class (DBConfig.java):

@MapperScan (basePackages = "com.googosoft.dao") : The com.googosoft.dao package interface / @Mapper classes with the annotation, such that the under-cladding interface / spring type is injected into the vessel.

dataSource (): This method @Bean, their return values to new DruidDataSource () is injected into the vessel spring.

@Configuration
@MapperScan(basePackages = "com.googosoft.dao")
public class DBConfig {

    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean(initMethod = "init", destroyMethod = "close", name = "dataSource")
    public DruidDataSource dataSource() {
        return new DruidDataSource();
    }
}

 

5, write a simple CRUD

(1) preparing a database, the new user table:

(2) The singing:

package com.googosoft.pojo;

public class User {
    private String id;
    private String name;
    private String password;
    
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    
}

(3) dao layer

package com.googosoft.dao.user;

import java.util.List;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import com.googosoft.pojo.User;

public interface UserDao {
 
    @Insert("INSERT INTO USER ( id, NAME ) VALUES ( #{id}, #{name} )")
    public int addUser(User user);

    @Delete("DELETE FROM USER WHERE    id = #{id}")
    public int deleteUser(@Param("id")String id);

    @Select("select id,name from user")
    public List<User> getUserList();

    @Update("update user set name=#{name} where id=#{id}")
    public int updateUser(@Param("id")String id,@Param("name")String name);

}

(4) service layer

package com.googosoft.service.user;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.googosoft.dao.user.UserDao;
import com.googosoft.pojo.User;

@Service
public class UserService {

    @Autowired
    private  UserDao userDao;
    
    public int addUser(User user) {
        return userDao.addUser(user);
    }
    
    public int deleteUser(String id) {
        return userDao.deleteUser(id);
    }
    
    public List<User> getUserList() {
        return userDao.getUserList();
    }
    
    public int updateUser(String id,String name) {
        return userDao.updateUser(id,name);
    }
}

(5) controller layer

package com.googosoft.controller.user;

import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.googosoft.pojo.User;
import com.googosoft.service.user.UserService;

@RestController
@RequestMapping("user")
public class UserController {
    @Autowired
    UserService service;

    @RequestMapping("test")
    public String test(String id,String name){
        return "test";
    }
    
    @RequestMapping("addUser")
    public int addUser(String id,String name){
        User user = new User();
        user.setId(id);
        user.setName(name);
        return service.addUser(user);
    }
    
    @RequestMapping("deleteUser")
    public int deleteUser(String id){
        return service.deleteUser(id);
    }
    
    @RequestMapping("getUserList")
    public List<User> getUserList(){
        return service.getUserList();
    }
    
    @RequestMapping("updateUser")
    public int updateUser(String id,String name){
        return service.updateUser(id,name);
    }
}

 (6) simple test

(1) check list: http: //127.0.0.1: 8089 / user / getUserList

(2) Add: http: //127.0.0.1:? 8089 / user / addUser id = 002 & name = lisi

(3) Update: http: //127.0.0.1: 8089 / user / updateUser id = 002 & name = zhangsan?

(4) Delete: http: //127.0.0.1: 8089 / user / deleteUser id = 002?