update 优化 解耦 security 与 mybatis 模块代码依赖

ruoyi-common/ruoyi-common-mybatis/src/main/java/com/ruoyi/common/mybatis/handler/MybatisExceptionHandler.java

@@ -0,0 +1,46 @@
+package com.ruoyi.common.mybatis.handler;
+
+import com.ruoyi.common.core.domain.R;
+import lombok.extern.slf4j.Slf4j;
+import org.mybatis.spring.MyBatisSystemException;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * Mybatis异常处理器
+ *
+ * @author Lion Li
+ */
+@Slf4j
+@RestControllerAdvice
+public class MybatisExceptionHandler {
+
+    /**
+     * 主键或UNIQUE索引，数据重复异常
+     */
+    @ExceptionHandler(DuplicateKeyException.class)
+    public R<Void> handleDuplicateKeyException(DuplicateKeyException e, HttpServletRequest request) {
+        String requestURI = request.getRequestURI();
+        log.error("请求地址'{}',数据库中已存在记录'{}'", requestURI, e.getMessage());
+        return R.fail("数据库中已存在该记录，请联系管理员确认");
+    }
+
+    /**
+     * Mybatis系统异常 通用处理
+     */
+    @ExceptionHandler(MyBatisSystemException.class)
+    public R<Void> handleCannotFindDataSourceException(MyBatisSystemException e, HttpServletRequest request) {
+        String requestURI = request.getRequestURI();
+        String message = e.getMessage();
+        if (message.contains("CannotFindDataSourceException")) {
+            log.error("请求地址'{}', 未找到数据源", requestURI);
+            return R.fail("未找到数据源，请联系管理员确认");
+        }
+        log.error("请求地址'{}', Mybatis系统异常", requestURI, e);
+        return R.fail(message);
+    }
+
+}