From e2e99d3faa31d28c8c6e144cac3696adb1df4557 Mon Sep 17 00:00:00 2001
From: ninghao <jeffreyning@aliyun.com>
Date: Sun, 3 Jan 2021 21:13:09 +0800
Subject: [PATCH] =?UTF-8?q?service=E5=B1=82=E5=A4=9A=E4=B8=BB=E9=94=AE?=
 =?UTF-8?q?=E6=8E=A5=E5=8F=A3?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md                                     | 32 ++++++++++++++++++-
 pom.xml                                       |  2 +-
 .../mybatisplus/service/IMppService.java      | 24 ++++++++++++++
 3 files changed, 56 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/com/github/jeffreyning/mybatisplus/service/IMppService.java

diff --git a/README.md b/README.md
index 01e473b..23b55ab 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ mybatisplus-plus对mybatisplus的一些功能补充
 **根据多个字段联合主键增删改查**
 原生mybatisplus只支持一个主键，mpp支持多个字段联合主键增删改查，mapper需要继承MppBaseMapper<br>
 实体类中联合主键的字段需要用@MppMultiId注解修饰<br>
+如果需要在service使用多主键相关操作，可以直接继承IMppService接口<br>
 
 **优化分页插件实现在不分页时进行排序操作**
 原生mybatisplus分页与排序是绑定的，mpp优化了分页插件，使用MppPaginationInterceptor插件<br>
@@ -47,7 +48,7 @@ mpp的lambda方式<br>
     <dependency>
         <groupId>com.github.jeffreyning</groupId>
         <artifactId>mybatisplus-plus</artifactId>
-        <version>1.3.0-RELEASE</version>
+        <version>1.3.1-RELEASE</version>
     </dependency>
 ````
 
@@ -208,6 +209,35 @@ public interface Test07Mapper extends MppBaseMapper<Test07Entity> {
         test07Mapper.updateByMultiId(retEntity);
     }
 ````
+service层继承IMppService
+````
+public interface Test07Service extends IMppService<Test07Entity> {
+}
+@Service
+public class Test07ServiceImpl extends ServiceImpl<Test07Mapper, Test07Entity> implements Test07Service {
+}
+````
+
+在service层调用多主键操作
+````
+    public void testMultiIdService(){
+        //id
+        Test07Entity idEntity=new Test07Entity();
+        idEntity.setK1(1);
+        idEntity.setK2("111");
+        //del
+
+        test07Service.deleteByMultiId(idEntity);
+        //add
+        test07Service.save(idEntity);
+        //query
+        Test07Entity retEntity=test07Service.selectByMultiId(idEntity);
+        retEntity.setCol1("xxxx");
+        //update
+        test07Mapper.updateByMultiId(retEntity);
+    }
+````
+
 **优化分页插件实现在不分页时进行排序操作**
 使用MppPaginationInterceptor插件
 ````
diff --git a/pom.xml b/pom.xml
index 3c595b0..6fc81f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.github.jeffreyning</groupId>
   <artifactId>mybatisplus-plus</artifactId>
-  <version>1.3.0-RELEASE</version>
+  <version>1.3.1-RELEASE</version>
   <dependencies>
 	<dependency>
 		<groupId>com.baomidou</groupId>
diff --git a/src/main/java/com/github/jeffreyning/mybatisplus/service/IMppService.java b/src/main/java/com/github/jeffreyning/mybatisplus/service/IMppService.java
new file mode 100644
index 0000000..249e7a3
--- /dev/null
+++ b/src/main/java/com/github/jeffreyning/mybatisplus/service/IMppService.java
@@ -0,0 +1,24 @@
+package com.github.jeffreyning.mybatisplus.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.baomidou.mybatisplus.extension.toolkit.SqlHelper;
+import com.github.jeffreyning.mybatisplus.base.MppBaseMapper;
+
+/**
+ * @author ninghao
+ */
+public interface IMppService<T> extends IService<T> {
+    MppBaseMapper<T> getBaseMapper();
+    default boolean updateByMultiId(T entity) {
+        return SqlHelper.retBool(this.getBaseMapper().updateByMultiId(entity));
+    }
+
+    default boolean deleteByMultiId(T entity) {
+        return SqlHelper.retBool(this.getBaseMapper().deleteByMultiId(entity));
+    }
+
+    default T selectByMultiId(T entity) {
+        return this.getBaseMapper().selectByMultiId(entity);
+    }
+
+}