[A] JDbcTemplate代码提交

pom.xml

@@ -39,5 +39,19 @@
             <version>1.18.22</version>
             <scope>provided</scope>
         </dependency>
+
+        <!-- jdbcTemplate -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+
+        <!-- MySQL连接 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
     </dependencies>
 </project>
\ No newline at end of file

src/main/java/com/lsqingfeng/springboot/vo/result/Result.java → src/main/java/com/lsqingfeng/springboot/base/Result.java

-package com.lsqingfeng.springboot.vo.result;
+package com.lsqingfeng.springboot.base;
 
 import lombok.Data;
 

src/main/java/com/lsqingfeng/springboot/vo/result/ResultCode.java → src/main/java/com/lsqingfeng/springboot/base/ResultCode.java

-package com.lsqingfeng.springboot.vo.result;
+package com.lsqingfeng.springboot.base;
 
 import lombok.Builder;
 import lombok.Data;

src/main/java/com/lsqingfeng/springboot/vo/result/ResultCodeEnum.java → src/main/java/com/lsqingfeng/springboot/base/ResultCodeEnum.java

-package com.lsqingfeng.springboot.vo.result;
+package com.lsqingfeng.springboot.base;
 
 /**
  * @enumName: ResultCodeEnum

src/main/java/com/lsqingfeng/springboot/controller/ThirdException.java

+package com.lsqingfeng.springboot.controller;
+
+import com.lsqingfeng.springboot.base.ResultCode;
+import com.lsqingfeng.springboot.exception.BizException;
+import com.lsqingfeng.springboot.vo.User;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @className: ThirdException
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 11:09
+ */
+@RestController
+public class ThirdException {
+
+    @GetMapping("exception")
+    public User second(){
+        System.out.println(1);
+        throw new BizException(ResultCode.BIZ_ERROR.getCode(), "用户名密码错误");
+    }
+
+
+}

src/main/java/com/lsqingfeng/springboot/dao/jdbcTemplate/UserDao.java

+package com.lsqingfeng.springboot.dao.jdbcTemplate;
+
+import com.lsqingfeng.springboot.entity.User;
+
+import java.util.List;
+
+/**
+ * @interface: UserDao
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 16:37
+ */
+public interface UserDao {
+    /**
+     * 根据id查询
+     * @param id
+     * @return
+     */
+    User getUserById(Integer id);
+
+    /**
+     * 查询所有用户
+     * @return
+     */
+    List<User> listUser();
+
+    /**
+     * 保存用户
+     * @param user
+     * @return
+     */
+    int save(User user);
+
+    /**
+     * 更新用户
+     * @param id
+     * @param user
+     * @return
+     */
+    int update(Integer id, User user);
+
+    /**
+     * 删除用户
+     * @param id
+     * @return
+     */
+    int delete(Integer id);
+
+
+}

src/main/java/com/lsqingfeng/springboot/dao/jdbcTemplate/impl/UserDaoImpl.java

+package com.lsqingfeng.springboot.dao.jdbcTemplate.impl;
+
+import com.lsqingfeng.springboot.dao.jdbcTemplate.UserDao;
+import com.lsqingfeng.springboot.entity.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.BeanPropertyRowMapper;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.util.Date;
+import java.util.List;
+
+/**
+ * @className: UserDaoImpl
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 16:40
+ */
+@Repository
+public class UserDaoImpl implements UserDao {
+
+    @Autowired
+    private JdbcTemplate jdbcTemplate;
+
+    @Override
+    public User getUserById(Integer id) {
+        User user  = jdbcTemplate.queryForObject("select * from t_user where id = ?",User.class, id);
+        return user;
+    }
+
+    @Override
+    public List<User> listUser() {
+        List<User> users = jdbcTemplate.queryForList("select * from t_user", User.class);
+        return users;
+    }
+
+    @Override
+    public int save(User user) {
+        return jdbcTemplate.update("insert into t_user(name, age, address, create_time, update_time) values(?, ?, ?)",
+                user.getName(),user.getAge(), user.getAddress(),new Date(),new Date());
+    }
+
+    @Override
+    public int update(Integer id, User user) {
+        return jdbcTemplate.update("UPDATE t_user SET name = ? , age = ? ,address = ? ,update_time = ? WHERE id=?",
+                user.getName(), user.getAge(), user.getAddress(), new Date(), id);
+    }
+
+    @Override
+    public int delete(Integer id) {
+        return jdbcTemplate.update("DELETE from tb_user where id = ? ",id);
+    }
+}

src/main/java/com/lsqingfeng/springboot/entity/User.java

+package com.lsqingfeng.springboot.entity;
+
+import lombok.Data;
+
+import java.util.Date;
+
+/**
+ * @className: User
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 16:35
+ */
+@Data
+public class User {
+
+    private Integer id;
+
+    private String name;
+
+    private Integer age;
+
+    private String address;
+
+    private Date createTime;
+
+    private Date updateTime;
+
+}

src/main/java/com/lsqingfeng/springboot/exception/BizException.java

+package com.lsqingfeng.springboot.exception;
+
+import com.lsqingfeng.springboot.base.ResultCode;
+
+/**
+ * @className: BizException
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 11:00
+ */
+public class BizException extends RuntimeException {
+    private Integer code;
+
+    public BizException() {
+    }
+
+    public BizException(String message) {
+        super(message);
+    }
+
+    public BizException(Integer code, String message) {
+        super(message);
+        this.code = code;
+    }
+
+    public BizException(ResultCode resultCode) {
+        super(resultCode.getMsg());
+        this.code = resultCode.getCode();
+    }
+
+    public BizException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public BizException(int code, String message, Throwable cause) {
+        super(message, cause);
+        this.code = code;
+    }
+
+    public BizException(ResultCode resultCode, Throwable cause) {
+        super(resultCode.getMsg(), cause);
+        this.code = resultCode.getCode();
+    }
+
+    public Integer getCode() {
+        return this.code;
+    }
+
+    public void setCode(Integer code) {
+        this.code = code;
+    }
+}

src/main/java/com/lsqingfeng/springboot/exception/GlobalExceptionHandler.java

+package com.lsqingfeng.springboot.exception;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.lsqingfeng.springboot.base.Result;
+import com.lsqingfeng.springboot.base.ResultCode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.annotation.Order;
+import org.springframework.http.HttpStatus;
+import org.springframework.util.StringUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.FieldError;
+import org.springframework.web.HttpMediaTypeNotSupportedException;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import javax.servlet.http.HttpServletRequest;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.List;
+
+/**
+ * @className: GlobalExceptionHandler
+ * @description:
+ * @author: sh.Liu
+ * @date: 2022-01-14 11:03
+ */
+@RestControllerAdvice
+@Order(1)
+public class GlobalExceptionHandler {
+    private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
+
+    public GlobalExceptionHandler() {
+    }
+
+
+    private String handlerErrors(BindingResult bindingResult) {
+        List<FieldError> errors = bindingResult.getFieldErrors();
+        FieldError error = (FieldError)errors.get(0);
+        return error.getDefaultMessage();
+    }
+
+    @ExceptionHandler({BizException.class})
+    public Result<?> bizExceptionHandler(HttpServletRequest request, BizException e) {
+        Result<?> result = Result.error(e.getCode() == null ? ResultCode.BIZ_ERROR.getCode() : e.getCode(), e.getMessage());
+        return this.printLogAndReturn(request, result, e);
+    }
+
+    @ExceptionHandler({HttpRequestMethodNotSupportedException.class, HttpMediaTypeNotSupportedException.class})
+    public Result<?> httpRequestMethodNotSupportedExceptionHandler(HttpServletRequest request, Exception e) {
+        Result<?> result = Result.error(ResultCode.REQ_MODE_NOT_SUPPORTED);
+        return this.printLogAndReturn(request, result, e);
+    }
+
+
+    @ExceptionHandler({Exception.class})
+    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+    public Result<?> exceptionHandler(HttpServletRequest request, Exception e) {
+        Result<?> result = Result.error(ResultCode.SYS_ERROR);
+        return this.printLogAndReturn(request, result, e);
+    }
+
+    private Result<?> printLogAndReturn(HttpServletRequest request, Result<?> result, Exception e) {
+        ObjectMapper mapper = new ObjectMapper();
+
+        String requestUrl = request.getRequestURL().toString() + (!StringUtils.hasLength(request.getQueryString()) ? "" : "?" + request.getQueryString());
+        try {
+            log.error("<-异常返回-> 请求接口:{} | 异常时间:{} | 异常结果:{}", new Object[]{requestUrl, System.currentTimeMillis(), mapper.writeValueAsString(result)});
+
+        } catch (JsonProcessingException jsonProcessingException) {
+            jsonProcessingException.printStackTrace();
+        }
+        log.error("<--异常堆栈信息-->");
+        StringWriter stringWriter = new StringWriter();
+        e.printStackTrace(new PrintWriter(stringWriter));
+        log.error(stringWriter.toString());
+        return result;
+    }
+}

src/main/resources/application.yml

 server:
-  port: 9090
+  port: 9092
+
+spring:
+  datasource:
+    driver-class-name: com.mysql.jdbc.Driver
+    url: jdbc:mysql://localhost:3306/springboot_learning
+    username: root
+    password: root
 
 third:
   weather: