@CacheEvict的实例

Author: 曾梓健

springboot_cache/src/main/java/com/hand/springboot_cache/controller/EmployeeController.java

@@ -4,6 +4,7 @@
 import com.hand.springboot_cache.service.EmployeeService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.annotation.Cacheable;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -31,4 +32,9 @@ public Employee getEmpById(@PathVariable("id") Integer id) {
 	public Employee updateEmp(@RequestBody Employee employee) {
 		return employeeService.updateEmp(employee);
 	}
+
+	@DeleteMapping("/emp/{id}")
+	public void delEmp(@PathVariable("id") Integer id) {
+		employeeService.deleteEmp(id);
+	}
 }

springboot_cache/src/main/java/com/hand/springboot_cache/service/EmployeeService.java

@@ -3,6 +3,7 @@
 import com.hand.springboot_cache.entity.Employee;
 import com.hand.springboot_cache.mapper.EmployeeMapper;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.cache.annotation.CachePut;
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
@@ -46,4 +47,10 @@ public Employee updateEmp(Employee employee) {
 	}
 
 
+	@CacheEvict(cacheNames = {"emp"}, key = "#id", beforeInvocation = true)
+	public void deleteEmp(int id) {
+		employeeMapper.deleteEmpById(id);
+	}
+
+
 }