jpa中MetaObjectHandler允许子项目覆盖

examples/mybatis-plus-example/src/main/java/com/chinaunicom/mall/ebtp/cloud/mybatis/example/config/ExampleConfiguration.java

@@ -0,0 +1,28 @@
+package com.chinaunicom.mall.ebtp.cloud.mybatis.example.config;
+
+import org.apache.ibatis.reflection.MetaObject;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
+
+@Configuration
+public class ExampleConfiguration {
+
+	@Bean
+	MetaObjectHandler metaObjectHanlder() {
+		return new MetaObjectHandler() {
+
+			@Override
+			public void updateFill(MetaObject metaObject) {
+				// TODO Auto-generated method stub
+			}
+
+			@Override
+			public void insertFill(MetaObject metaObject) {
+				setFieldValByName("createBy", "Example", metaObject);
+			}
+		};
+	}
+
+}

examples/mybatis-plus-example/src/main/java/com/chinaunicom/mall/ebtp/cloud/mybatis/example/model/Demo.java

@@ -2,17 +2,24 @@ package com.chinaunicom.mall.ebtp.cloud.mybatis.example.model;
 
 import java.sql.Date;
 
+import com.baomidou.mybatisplus.annotation.FieldFill;
+import com.baomidou.mybatisplus.annotation.TableField;
+
 import lombok.Data;
 import lombok.experimental.Accessors;
 
 @Data
 @Accessors(chain = true)
 public class Demo {
-	
+
 	private Long id;
 	private String col1;
 	private String col2;
+
+	/** 参数自动注入 */
+	@TableField(fill = FieldFill.INSERT)
 	private String createBy;
+
 	private Date createTime;
 	private String updateBy;
 	private Date updateTime;

examples/mybatis-plus-example/src/test/java/com/chinaunicom/mall/ebtp/cloud/mybatis/example/MybatisPlusExampleTest.java

@@ -10,8 +10,6 @@ import org.springframework.test.context.junit4.SpringRunner;
 import com.chinaunicom.mall.ebtp.cloud.mybatis.example.mapper.DemoMapper;
 import com.chinaunicom.mall.ebtp.cloud.mybatis.example.model.Demo;
 
-import cn.hutool.core.util.IdUtil;
-
 @RunWith(SpringRunner.class)
 @SpringBootTest
 public class MybatisPlusExampleTest {
@@ -24,12 +22,10 @@ public class MybatisPlusExampleTest {
 	@Test
 	public void testInsert() {
 		Demo demo = new Demo();
-//		demo.setId("10");
+//		demo.setId("10");  不需要认为设置id，由mybatis-plus自动生成
-//		demo.setCol1("test");
+		demo.setCol1("test");
-//		demo.setCol2("test01");
+		demo.setCol2("test01");
-//
 
-    	System.out.println(IdUtil.getSnowflake(30, 30).nextId());
 		Assertions.assertThat(mapper.insert(demo)).isGreaterThan(0);
 	}
 //

mall-ebtp-cloud-jpa-starter/src/main/java/com/chinaunicom/mall/ebtp/cloud/jpa/starter/JpaStarterConfiguration.java

@@ -3,6 +3,7 @@ package com.chinaunicom.mall.ebtp.cloud.jpa.starter;
 import java.time.LocalDateTime;
 
 import org.apache.ibatis.reflection.MetaObject;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.ComponentScan.Filter;
@@ -21,6 +22,7 @@ import cn.chinaunicom.sdsi.framework.config.mybatis.MyMetaObjectHandler;
 public class JpaStarterConfiguration {
 
 	@Bean
+	@ConditionalOnMissingBean(MetaObjectHandler.class)
 	MetaObjectHandler metaObjectHandler() {
 		return new MetaObjectHandler() {
 			/**
@@ -43,6 +45,8 @@ public class JpaStarterConfiguration {
 			 */
 			@Override
 			public void insertFill(MetaObject metaObject) {
+				setFieldValByName("createBy", "tester", metaObject);
+
 //				Object obj = getFieldValByName("createBy", metaObject);
 //				obj = getFieldValByName("createDate", metaObject);
 //				if (obj == null) {