标签：name 改查 value public 增删 user MyBatis import id
private Integer userId;
@ApiModelProperty(value = “日志内容”)
private String action;
@ApiModelProperty(value = “创建时间”)
private Date createTime;
@Override
public String toString() {
return “Log{” +
“id=” + id +
“, userId=” + userId +
“, action=’” + action + ‘’’ +
“, createTime=” + createTime +
‘}’;
}
// 省去get和set方法，请您自行补齐
}
- 为联表查询的结果准备一个bean，名为LogExtend.java，继承自Log.java，自己只有个userName字段，对应联表查询user表的name字段：
package com.bolingcavalry.curd.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
@ApiModel(description = “日志实体类(含用户表的字段)”)
public class LogExtend extends Log {
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
@ApiModelProperty(value = “用户名”)
private String userName;
@Override
public String toString() {
return “LogExtend{” +
“id=” + getId() +
“, userId=” + getUserId() +
“, userName=’” + getUserName() + ‘’’ +
“, action=’” + getAction() + ‘’’ +
“, createTime=” + getCreateTime() +
‘}’;
}
}
- 增加user表的mapper映射文件，可见都是些很简单sql，要注意的是批量新增的节点，这里面用到了foreach语法，可以通过集合动态生成sql：
select * from user where id = #{id}
insert into user (id, name, age) values (#{id}, #{name}, #{age})
insert into user (id, name, age)
values
(#{user.id}, #{user.name}, #{user.age})
select id, name, age from user where name like concat(’%’, #{name}, ‘%’)
delete from user where id= #{id}
delete from user
update user set name = #{name}, age = #{age} where id = #{id}
select count(*) from user
- 增加log表的mapper映射文件，如下所示，请关注联表操作selExtend，其结果是logExtendResultMap：
insert into log (id, user_id, action, create_time) values (#{id}, #{userId}, #{action}, #{createTime})
select l.id as id,
l.user_id as user_id,
l.action as action,
l.create_time as create_time,
u.name as user_name
from log as l
left join user as u
on l.user_id = u.id
where l.id = #{id}
- 增加用户表的mapper接口类UserMapper.java ，对应着映射文件中的sql节点的id：
package com.bolingcavalry.curd.mapper;
import com.bolingcavalry.curd.entity.LogExtend;
import com.bolingcavalry.curd.entity.User;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
public interface UserMapper {
User sel(int id);
int insertWithFields(User user);
int insertBatch(List users);
int clearAll();
List findByName(String name);
int update(User user);
int delete(int id);
int totalCount();
LogExtend selExtend(int id);
}
- 增加日志表的mapper接口类LogMapper.java，对应着映射文件中的sql节点的id：
package com.bolingcavalry.curd.mapper;
import com.bolingcavalry.curd.entity.Log;
import com.bolingcavalry.curd.entity.LogExtend;
import org.springframework.stereotype.Repository;
@Repository
public interface LogMapper {
Log sel(int id);
LogExtend selExtend(int id);
int insertWithFields(Log log);
}
- mapper接口完成后就是service层，先写user表的service，如下所示，可见都是对mapper接口的调用：
package com.bolingcavalry.curd.service;
import com.bolingcavalry.curd.entity.User;
import com.bolingcavalry.curd.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService {
@Autowired
UserMapper userMapper;
public User sel(int id) {
return userMapper.sel(id);
}
public User insertWithFields(User user) {
userMapper.insertWithFields(user);
return user;
}
public List insertBatch(List users) {
userMapper.insertBatch(users);
return users;
}
public int clearAll() {
return userMapper.clearAll();
}
public List findByName(String name) {
return userMapper.findByName(name);
}
public int update(User user) {
return userMapper.update(user);
}
public int delete(int id) {
return userMapper.delete(id);
}
public int totalCount() {
return userMapper.totalCount();
}
}
- 还有log表的service：
package com.bolingcavalry.curd.service;
import com.bolingcavalry.curd.entity.Log;
import com.bolingcavalry.curd.entity.LogExtend;
import com.bolingcavalry.curd.entity.User;
import com.bolingcavalry.curd.mapper.LogMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class LogService {
@Autowired
LogMapper logMapper;
public Log sel(int id){
return logMapper.sel(id);
}
public LogExtend selExtend(int id) {
return logMapper.selExtend(id);
}
public Log insertWithFields(Log log) {
logMapper.insertWithFields(log);
return log;
}
}
- 最后是controller层了，由于使用了swagger，导致controller相对上一篇略微复杂（多了些注解）：
package com.bolingcavalry.curd.controller;
import com.bolingcavalry.curd.entity.User;
import com.bolingcavalry.curd.service.UserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/user")
@Api(tags = {“UserController”})
public class UserController {
@Autowired
private UserService userService;
@ApiOperation(value = “新增user记录”, notes=“新增user记录”)
@RequestMapping(value = “/insertwithfields”,method = RequestMethod.PUT)
public User create(@RequestBody User user) {
return userService.insertWithFields(user);
}
@ApiOperation(value = “批量新增user记录”, notes=“批量新增user记录”)
@RequestMapping(value = “/insertbatch”, method = RequestMethod.PUT)
public List insertBatch(@RequestBody List users) {
ret
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urn userService.insertBatch(users);
}
@ApiOperation(value = “删除指定ID的user记录”, notes=“删除指定ID的user记录”)
@ApiImplicitParam(name = “id”, value = “用户ID”, paramType = “path”, required = true, dataType = “Integer”)
@RequestMapping(value = “/{id}”, method = RequestMethod.DELETE)
public int delete(@PathVariable int id){
return userService.delete(id);
}
@ApiOperation(value = “删除user表所有数据”, notes=“删除user表所有数据”)
@RequestMapping(value = “/clearall”, method = RequestMethod.DELETE)
public int clearAll(){
return userService.clearAll();
}
@ApiOperation(value = “根据ID修改user记录”, notes=“根据ID修改user记录”)
@RequestMapping(value = “/update”, method = RequestMethod.POST)
public int update(@RequestBody User user){
return userService.update(user);
}
@ApiOperation(value = “根据名称模糊查找所有user记录”, notes=“根据名称模糊查找所有user记录”)
@ApiImplicitParam(name = “name”, value = “用户名”, paramType = “path”, required = true, dataType = “String”)
@RequestMapping(value = “/findbyname/{name}”, method = RequestMethod.GET)
public List findByName(@PathVariable(“name”) String name){
return userService.findByName(name);
}
@ApiOperation(value = “根据ID查找user记录”, notes=“根据ID查找user记录”)
@ApiImplicitParam(name = “id”, value = “用户ID”, paramType = “path”, required = true, dataType = “Integer”)
@RequestMapping(value = “/{id}”, method = RequestMethod.GET)
public User GetUser(@PathVariable int id){
return userService.sel(id);
}
@ApiOperation(value = “获取总数”, notes=“获取总数”)
@RequestMapping(value = “/totalcount”, method = RequestMethod.GET)
public int totalcount(){
return userService.totalCount();
}
}
- log的controller如下：
package com.bolingcavalry.curd.controller;
import com.bolingcavalry.curd.entity.Log;
import com.bolingcavalry.curd.entity.LogExtend;
import com.bolingcavalry.curd.service.LogService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
@RestController
@RequestMapping("/log")
@Api(tags = {“LogController”})
public class LogController {
@Autowired
private LogService logService;
@ApiOperation(value = “根据ID查找日志记录”, notes=“根据ID查找日志记录”)
@ApiImplicitParam(name = “id”, value = “日志ID”, paramType = “path”, required = true, dataType = “Integer”)
@RequestMapping(value = “/{id}”, method = RequestMethod.GET)
public LogExtend logExtend(@PathVariable int id){
return logService.selExtend(id);
}
@ApiOperation(value = “新增日志记录”, notes=“新增日志记录”)
@RequestMapping(value = “/insertwithfields”,method = RequestMethod.PUT)
public Log create(@RequestBody Log log) {
return logService.insertWithFields(log);
}
}
- 最后是一段单元测试的代码，咱们试试通过junit进行自测，如下所示，可见一共测试了三个controller接口：先新增，再查找，最后删除，要注意的是MockMvc的用法，以及jsonPath方法的用法，还有就是通过Order注解控制执行顺序（一定要添加TestMethodOrder注解，否则Order注解不生效）：
package com.bolingcavalry.curd.controller;
import com.bolingcavalry.curd.entity.User;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonParser;
import org.junit.Ignore;
import org.junit.jupiter.api.*;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import java.util.List;
import java.util.UUID;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
class UserControllerTest {
@Autowired
private MockMvc mvc;
// user表的name字段，这里为了保证测试时新增和删除的记录是同一条，用UUID作为用户名
static String testName;
@BeforeAll
static void init() {
testName = UUID.randomUUID().toString().replaceAll("-","");;
}
@Test
@Order(1)
void insertWithFields() throws Exception {
String jsonStr = “{“name”: “” + testName + “”, “age”: 10}”;
mvc.perform(
MockMvcRequestBuilders.put("/user/insertwithfields")
.contentType(MediaType.APPLICATION_JSON)
.content(jsonStr)
.accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.name", is(testName)))
.andDo(print())
.andReturn()
.getResponse()
.getContentAsString();
}
@Test
@Order(2)
void findByName() throws Exception {
mvc.perform(MockMvcRequestBuilders.get("/user/findbyname/"+ testName).accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$", hasSize(1)))
.andDo(print());
}
@Test
@Order(3)
void delete() throws Exception {
// 先根据名称查出记录
String responseString = mvc.perform(MockMvcRequestBuilders.get("/user/findbyname/"+ testName).accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$", hasSize(1)))
.andDo(print())
.andReturn()
.getResponse()
.getContentAsString();
// 反序列化得到数组
JsonArray jsonArray = JsonParser.parseString(responseString).getAsJsonArray();
// 反序列化得到user实例
User user = new Gson().fromJson(jsonArray.get(0), User.class);
// 执行删除
mvc.perform(MockMvcRequestBuilders.delete("/user/"+ user.getId()).accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(content().string(equalTo(“1”)))
.andDo(print());
}
}
标签：name,改查,value,public,增删,user,MyBatis,import,id 来源： https://blog.csdn.net/m0_63174529/article/details/121037515
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