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src/main/java/com/nbport/zgwl/config/MybatisPlusConfig.java

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+package com.nbport.zgwl.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MybatisPlusConfig {
+
+    @Value("${spring.datasource.url:}")
+    private String datasourceUrl;
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        PaginationInnerInterceptor paginationInnerInterceptor =
+                new PaginationInnerInterceptor(resolveDbType(datasourceUrl));
+        paginationInnerInterceptor.setMaxLimit(500L);
+        interceptor.addInnerInterceptor(paginationInnerInterceptor);
+        return interceptor;
+    }
+
+    private DbType resolveDbType(String jdbcUrl) {
+        if (jdbcUrl == null) {
+            return DbType.MYSQL;
+        }
+        String url = jdbcUrl.toLowerCase();
+        if (url.startsWith("jdbc:oracle:")) {
+            return DbType.ORACLE;
+        }
+        if (url.startsWith("jdbc:mysql:")) {
+            return DbType.MYSQL;
+        }
+        return DbType.MYSQL;
+    }
+}