diff --git a/src/main/java/com/mashibing/controller/AirController.java b/src/main/java/com/mashibing/controller/AirController.java
index 0a2a911..f3a709c 100644
--- a/src/main/java/com/mashibing/controller/AirController.java
+++ b/src/main/java/com/mashibing/controller/AirController.java
@@ -1,6 +1,7 @@
 package com.mashibing.controller;
 
 import com.github.pagehelper.PageInfo;
+import com.mashibing.entity.Air;
 import com.mashibing.entity.District;
 import com.mashibing.form.AirAddForm;
 import com.mashibing.service.AirService;
@@ -94,4 +95,50 @@ public class AirController {
         //3、添加成功
         return R.ok();
     }
+
+
+    /**
+     * # 修改空气质量信息
+     * # 请求方式&路径
+     * POST	http://localhost:8080/air/update
+     *
+     * # 请求参数
+     * id = Integer   （必传项）
+     * districtId = Integer   （非必传）
+     * monitorTime = yyyy-MM-dd  （非必传）
+     * pm10 = Integer  （非必传）
+     * pm25 = Integer  （非必传）
+     * monitoringStation = String  （非必传）
+     *
+     * # 业务流程
+     * 1、接收参数
+     * 2、做参数的非空校验
+     * 3、修改指定id的数据
+     *
+     * # 响应数据
+     * 成功响应：
+     * {
+     *   "code": 0,
+     *   "msg": ""
+     * }
+     * 失败响应：
+     * {
+     *   "code": 错误编码,
+     *   "msg": "错误信息"
+     * }
+     */
+    @PostMapping("/air/update")
+    public ResultVO airUpdate(Air air){
+        // 1、做参数的非空校验
+        Integer id = air.getId();
+        if(id == null){
+            return R.error(400,"参数不合法！");
+        }
+
+        //2、找Service修改数据
+        airService.updateById(air);
+
+        //3、返回
+        return R.ok();
+    }
 }
diff --git a/src/main/java/com/mashibing/entity/Air.java b/src/main/java/com/mashibing/entity/Air.java
index 0b73e1b..3e91ae0 100644
--- a/src/main/java/com/mashibing/entity/Air.java
+++ b/src/main/java/com/mashibing/entity/Air.java
@@ -18,6 +18,7 @@ public class Air {
     private Integer districtId;
 
     @JsonFormat(pattern = "yyyy-MM-dd")
+    @DateTimeFormat(pattern = "yyyy-MM-dd")
     private Date monitorTime;
 
     private Integer pm10;
diff --git a/src/main/java/com/mashibing/mapper/AirMapper.java b/src/main/java/com/mashibing/mapper/AirMapper.java
index e186b48..321f1e7 100644
--- a/src/main/java/com/mashibing/mapper/AirMapper.java
+++ b/src/main/java/com/mashibing/mapper/AirMapper.java
@@ -3,6 +3,7 @@ package com.mashibing.mapper;
 import com.mashibing.entity.Air;
 import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Update;
 
 import java.util.List;
 
@@ -18,4 +19,8 @@ public interface AirMapper {
     // 添加数据
     @Insert("insert into air (district_id,monitor_time,pm10,pm25,monitoring_station) values (#{districtId},#{monitorTime},#{pm10},#{pm25},#{monitoringStation})")
     int insert(Air air);
+
+    // 修改数据
+    @Update("update air set district_id = #{districtId},monitor_time = #{monitorTime},pm10 = #{pm10},pm25 = #{pm25},monitoring_station = #{monitoringStation} where id = #{id}")
+    int updateById(Air air);
 }
diff --git a/src/main/java/com/mashibing/service/AirService.java b/src/main/java/com/mashibing/service/AirService.java
index 7d22228..6509037 100644
--- a/src/main/java/com/mashibing/service/AirService.java
+++ b/src/main/java/com/mashibing/service/AirService.java
@@ -1,6 +1,7 @@
 package com.mashibing.service;
 
 import com.github.pagehelper.PageInfo;
+import com.mashibing.entity.Air;
 import com.mashibing.entity.District;
 import com.mashibing.form.AirAddForm;
 
@@ -31,4 +32,10 @@ public interface AirService {
      * @param airAddForm
      */
     void add(AirAddForm airAddForm);
+
+    /**
+     * 修改空气质量信息
+     * @param air
+     */
+    void updateById(Air air);
 }
diff --git a/src/main/java/com/mashibing/service/impl/AirServiceImpl.java b/src/main/java/com/mashibing/service/impl/AirServiceImpl.java
index 8d76840..9813414 100644
--- a/src/main/java/com/mashibing/service/impl/AirServiceImpl.java
+++ b/src/main/java/com/mashibing/service/impl/AirServiceImpl.java
@@ -63,4 +63,15 @@ public class AirServiceImpl implements AirService {
             throw new RuntimeException("【添加空气质量】  添加失败！！");
         }
     }
+
+    @Override
+    public void updateById(Air air) {
+        //1、修改数据
+        int count = airMapper.updateById(air);
+        //2、不成功，扔异常
+        if (count != 1) {
+            System.out.println("【修改空气质量】  修改失败！！");
+            throw new RuntimeException("【修改空气质量】  修改失败！！");
+        }
+    }
 }
diff --git a/src/test/java/com/mashibing/mapper/AirMapperTest.java b/src/test/java/com/mashibing/mapper/AirMapperTest.java
index 84ac94a..7f03af9 100644
--- a/src/test/java/com/mashibing/mapper/AirMapperTest.java
+++ b/src/test/java/com/mashibing/mapper/AirMapperTest.java
@@ -42,4 +42,16 @@ class AirMapperTest {
         int count = airMapper.insert(air);
         Assert.assertEquals(1,count);
     }
+
+    @Test
+    public void updateById(){
+        Air air = new Air();
+        air.setId(2);
+        air.setDistrictId(1);
+        air.setMonitorTime(new Date());
+        air.setPm10(10);
+        air.setPm25(25);
+        air.setMonitoringStation("长沙监测站！!!！");
+        airMapper.updateById(air);
+    }
 }
\ No newline at end of file
diff --git a/src/test/java/com/mashibing/service/AirServiceTest.java b/src/test/java/com/mashibing/service/AirServiceTest.java
index 39ee2c8..5ba701f 100644
--- a/src/test/java/com/mashibing/service/AirServiceTest.java
+++ b/src/test/java/com/mashibing/service/AirServiceTest.java
@@ -2,6 +2,7 @@ package com.mashibing.service;
 
 
 import com.github.pagehelper.PageInfo;
+import com.mashibing.entity.Air;
 import com.mashibing.entity.District;
 import com.mashibing.form.AirAddForm;
 import org.junit.Test;
@@ -47,4 +48,16 @@ public class AirServiceTest {
         air.setMonitoringStation("长沙监测站！!!!!!!！");
         airService.add(air);
     }
+
+    @Test
+    public void updateById(){
+        Air air = new Air();
+        air.setId(2);
+        air.setDistrictId(1);
+        air.setMonitorTime(new Date());
+        air.setPm10(10);
+        air.setPm25(25);
+        air.setMonitoringStation("北京监测站！!!！");
+        airService.updateById(air);
+    }
 }
\ No newline at end of file