接下来就是完成增删改查的功能了,首先在config包下配置Druid数据连接池,在配置之前先把相关配置在application.preperties中完善
application.preperties# 下面为连接池的补充设置,应用到上面所有数据源中# 初始化大小,最小,最大spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=30# 配置获取连接等待超时的时间spring.datasource.maxWait=60000# 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒spring.datasource.timeBetweenEvictionRunsMillis=60000# 配置一个连接在池中最小生存的时间,单位是毫秒spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECt 1 FROM DUAL spring.datasource.testWhileIdle=true spring.datasource.testonBorrow=false spring.datasource.testonReturn=false# 打开PSCache,并且指定每个连接上PSCache的大小spring.datasource.poolPreparedStatements=true spring.datasource.maxPoolPreparedStatementPerConnectionSize=20# 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙spring.datasource.filters=stat,wall,log4j# 通过connectProperties属性来打开mergeSql功能;慢SQL记录spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000# 合并多个DruidDataSource的监控数据spring.datasource.useGlobalDataSourceStat=true# Druid 监控 Servlet 配置参数spring.datasource.druidRegistrationUrl: /druid public ListgetAllUser(); void saveUser(User user); User getById(Integer id); Boolean checkUserName(String userName); void updateUser(User user); void deleteUser(Integer id); void deleteBatchUser(List useridList); }
UserServiceImpl实现类
@Service@Transactionalpublic class UserServiceImpl implements UserService { //注入
@Autowired
private UserMapper userMapper;
@Override
public List getAllUser() {
List users = userMapper.selectByExample(null); return users;
}
@Override
public User getById(Integer id) {
User user = userMapper.selectByPrimaryKey(id); return user;
}
@Override
public void saveUser(User user) {
userMapper.insertSelective(user);
}
@Override
public Boolean checkUserName(String userName) {
UserExample example=new UserExample();
UserExample.Criteria criteria=example.createCriteria();
criteria.andUsernameEqualTo(userName); long count=userMapper.countByExample(example); if(count==0){ return true;
} return false;
}
@Override
public void updateUser(User user) {
userMapper.updateByPrimaryKeySelective(user);
}
@Override
public void deleteUser(Integer id) {
userMapper.deleteByPrimaryKey(id);
}
@Override
public void deleteBatchUser(List useridList) {
}
} UserController@RestController@RequestMapping(value = "/user")public class UserController { //注入
@Autowired
private UserService userService;
@ApiOperation(value="获取用户列表") @RequestMapping(value = "/user",method = RequestMethod.GET) public List getListAll(){
List listAll = userService.getAllUser(); return listAll;
}
@ApiOperation(value = "添加用户",notes = "根据user添加用户") @ApiImplicitParam(name = "user",value = "用户user",required = true,dataType = "User") @RequestMapping(value = "/users",method = RequestMethod.POST) public String saveUser(@RequestBody User user){
userService.saveUser(user); return "success";
}
@ApiOperation(value = "根据id查询") @ApiImplicitParam(name = "id",value = "用户id") @RequestMapping(value = "/{id}",method = RequestMethod.GET) public User getById(@PathVariable("id") Integer id){
User user = userService.getById(id); return user;
}
@ApiOperation(value = "校验用户名") @ApiImplicitParam(name = "userName",value = "用户名",required = true,dataType = "String") @RequestMapping(value = "/{username}",method = RequestMethod.POST) public Boolean checkUserName(@PathVariable("username")String username){
Boolean aboolean = userService.checkUserName(username); if (aboolean){ return true;
}else { return false;
}
}
@ApiOperation(value = "修改用户") @ApiImplicitParam(name = "user",value = "用户",required = true,dataType = "User") @RequestMapping(value = "/user",method = RequestMethod.PUT) public String updateUser(@RequestBody User user){
userService.updateUser(user); return "success";
}
@ApiOperation(value = "根据id删除用户") @ApiImplicitParam(name = "id",value = "用户id",required = true,dataType = "Integer") @RequestMapping(value = "/{id}",method = RequestMethod.DELETE) public String deleteUser(@PathVariable Integer id){
userService.deleteUser(id); return "success";
}
} controller类中使用了swgger2如下:
springboot中整合swgger2pom.xml
io.springfox springfox-swagger22.2.2 io.springfox springfox-swagger-ui2.2.2
springbootmybatis包下创建SwaggerConfig.java
SwaggerConfig@Configuration@EnableSwagger2public class SwaggerConfig { @Bean
public Docket createRestApi() {
ApiInfo apiInfo = new ApiInfoBuilder()
.title("使用Swagger2构建RESTful APIs") //标题
.description("客户端与服务端接口文档") //描述
.termsOfServiceUrl("http://localost:8080") //域名地址
.contact("姜飞祥") //作者
.version("1.0.0") //版本号
.build(); return new Docket(documentationType.SWAGGER_2)
.apiInfo(apiInfo)
.select()
.apis(RequestHandlerSelectors.basePackage("com.example.springbootmybatis"))
.paths(PathSelectors.any())
.build();
}
}以上就算完成了,写的不好请见谅。具体测试请参考下面的springboot整合swgger2,之后访问http://localhost:8080/swagger-ui.html即可,和
备注:springboot整合swgger2参考:https://www.jianshu.com/p/57a4381a2b45
MyBatis的Mapper接口以及Example的实例函数及详解:https://blog.csdn.net/biandous/article/details/65630783
Mybatis Generator最完整配置详解:https://www.jianshu.com/p/e09d2370b796
原文出处:https://www.cnblogs.com/smfx1314/p/10334335.html
作者:姜飞祥



