支持多数据源切换

ruoyi-common/ruoyi-common-datasource/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>com.ruoyi</groupId>
+        <artifactId>ruoyi-common</artifactId>
+        <version>2.3.0</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    
+    <artifactId>ruoyi-common-datasource</artifactId>
+	
+    <description>
+        ruoyi-common-datasource多数据源
+    </description>
+
+    <dependencies>
+
+		<!-- Druid -->
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-starter</artifactId>
+            <version>${druid.version}</version>
+        </dependency>
+
+        <!-- Dynamic DataSource -->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
+            <version>${dynamic-ds.version}</version>
+        </dependency>
+
+    </dependencies>
+</project>

ruoyi-common/ruoyi-common-datasource/src/main/java/com/ruoyi/common/datasource/annotation/Master.java

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+package com.ruoyi.common.datasource.annotation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import com.baomidou.dynamic.datasource.annotation.DS;
+
+/**
+ * 主库数据源
+ * 
+ * @author ruoyi
+ */
+@Target({ ElementType.TYPE, ElementType.METHOD })
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@DS("master")
+public @interface Master
+{
+
+}

ruoyi-common/ruoyi-common-datasource/src/main/java/com/ruoyi/common/datasource/annotation/Slave.java

@@ -0,0 +1,22 @@
+package com.ruoyi.common.datasource.annotation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import com.baomidou.dynamic.datasource.annotation.DS;
+
+/**
+ * 从库数据源
+ * 
+ * @author ruoyi
+ */
+@Target({ ElementType.TYPE, ElementType.METHOD })
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@DS("slave")
+public @interface Slave
+{
+
+}