springboot整合postgresql
依赖
org.mybatis
mybatis
3.4.6
org.postgresql
postgresql
runtime
org.mybatis.spring.boot
mybatis-spring-boot-starter
1.3.2
org.mybatis.generator
mybatis-generator-maven-plugin
1.3.7
配置application.properties
spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.datasource.username=postgres
spring.datasource.password=123456
spring.datasource.driver-class-name=org.postgresql.Drivercontroller
package com.example.demo.controller;
import com.example.demo.entity.Dome;
import com.example.demo.page.PageRequest;
import com.example.demo.service.DomeService;
import com.github.pagehelper.PageInfo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* @creator wangli66
* @create-time 11:06 2019/12/3
**/
@Api(value = "Dome工程")
@RestController
@RequestMapping("/dome")
public class DomeController {
@Autowired
private DomeService domeService;
@ApiOperation(value = "testInterceptor")
@RequestMapping("/testInterceptor")
public String testInterceptor(String param) {
return domeService.testInterceptor(param);
}
@ApiOperation(value = "findDome")
@RequestMapping("/findDome")
public String findDome(Dome dome) {
return domeService.findById(dome).toString();
}
@ApiOperation(value = "findAll")
@RequestMapping("/findAll")
public List findAll() {
return domeService.findAll();
}
@ApiOperation(value = "insert")
@RequestMapping("/insert")
public void insert(Dome dome) {
domeService.insertDome(dome);
}
@ApiOperation(value = "findAllPage")
@RequestMapping("/findAllPage")
public PageInfo findAllPage(PageRequest pageRequest) {
return domeService.findAllPage(pageRequest);
}
}
service
package com.example.demo.service;
import com.example.demo.entity.Dome;
import com.example.demo.page.PageRequest;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @creator wangli66
* @create-time 17:14 2019/12/26
**/
@Service
public interface DomeService {
String testInterceptor(String param);
Dome findById(Dome dome);
List findAll();
void insertDome(Dome dome);
PageInfo findAllPage(PageRequest pageRequest);
}
impl
package com.example.demo.service;
import com.example.demo.dao.DomeDaoMapper;
import com.example.demo.entity.Dome;
import com.example.demo.page.PageRequest;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @creator wangli66
* @create-time 17:17 2019/12/26
**/
@Component
@Transactional
public class DomeServiceImpl implements DomeService {
@Autowired
private DomeDaoMapper domeDaoMapper;
@Override
public String testInterceptor(String param) {
return "测试拦截器：" + param;
}
@Override
public Dome findById(Dome dome) {
return domeDaoMapper.findById(dome);
}
@Override
public List findAll() {
return domeDaoMapper.findAll();
}
@Override
public void insertDome(Dome dome) {
domeDaoMapper.insertDome(dome);
}
/**
* 分页查询，使用pageHelper隔离sql的变化
*
* @param pageRequest
* @return
*/
@Override
public PageInfo findAllPage(PageRequest pageRequest) {
int pageNum = pageRequest.getPageNum() == null ? 1 : pageRequest.getPageNum();
int pageSize = pageRequest.getPageSize() == null ? 10 : pageRequest.getPageSize();
PageHelper.startPage(pageNum, pageSize);
List domes = domeDaoMapper.findAll();
return new PageInfo(domes);
}
// 测试物理分页，手动计算pagenum，pagesize
public void findAllPage1() {
int pageNum = 2;
int pageSize = 2;
List page1 = domeDaoMapper.findPage1(pageNum, pageSize);
System.out.println(page1);
}
public void insertTest(int count) {
// 插入十条数据
for (int i = 0; i < count; i++) {
Dome dome = new Dome();
dome.setName("wangli9" + i);
dome.setCompanyId("3" + i);
dome.setCompanyName("qqq" + i);
dome.setNickName("nike" + i);
dome.setPassword("123456" + i);
insertDome(dome);
}
}
}
mapper
package com.example.demo.dao;
import com.example.demo.entity.Dome;
import org.apache.ibatis.annotations.Param;
import java.util.List;
/**
* @creator wangli66
* @create-time 9:58 2019/12/27
**/
public interface DomeDaoMapper {
void insertDome(@Param("dome")Dome dome);
Dome findById(@Param("dome")Dome dome);
List findAll();
List findPage1(@Param("pageNum")int pageNum, @Param("pageSize")int pageSize);
}
mapper.xml
id,name,nick_name,company_name,company_id,password,status
insert into t_user(name,nick_name,company_name,company_id,password,status)values (
#{dome.name,jdbcType=VARCHAR},
#{dome.nickName,jdbcType=VARCHAR},
#{dome.companyName,jdbcType=VARCHAR},
#{dome.companyId,jdbcType=VARCHAR},
#{dome.password,jdbcType=VARCHAR},
0
)
entity
package com.example.demo.entity;
import lombok.Data;
/**
* @creator wangli66
* @create-time 9:59 2019/12/27
**/
@Data
public class Dome {
private Integer id;
private String name;
private String nickName;
private String companyName;
private String companyId;
private String password;
private Integer status;
}
包结构
