字典树新增接口

pqs-system/system-api/src/main/java/com/njcn/system/api/DictTreeFeignClient.java

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+package com.njcn.system.api;
+
+import com.njcn.common.pojo.constant.ServerInfo;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.system.api.fallback.DictTreeFeignClientFallbackFactory;
+import com.njcn.system.pojo.po.SysDicTreePO;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+/**
+ * @author xuyang
+ */
+@FeignClient(value = ServerInfo.SYSTEM, path = "/dictTree", fallbackFactory = DictTreeFeignClientFallbackFactory.class, contextId = "dictTree")
+public interface DictTreeFeignClient {
+
+    @PostMapping("/queryById")
+    HttpResult<SysDicTreePO> queryById(@RequestParam("id") String id);
+}

pqs-system/system-api/src/main/java/com/njcn/system/api/fallback/DictTreeFeignClientFallbackFactory.java

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+package com.njcn.system.api.fallback;
+
+
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.system.api.DicDataFeignClient;
+import com.njcn.system.api.DictTreeFeignClient;
+import com.njcn.system.pojo.po.DictData;
+import com.njcn.system.pojo.po.SysDicTreePO;
+import com.njcn.system.utils.SystemEnumUtil;
+import feign.hystrix.FallbackFactory;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+/**
+ * @author hongawen
+ * @version 1.0.0
+ * @date 2021年09月09日 15:19
+ */
+@Slf4j
+@Component
+public class DictTreeFeignClientFallbackFactory implements FallbackFactory<DictTreeFeignClient> {
+    @Override
+    public DictTreeFeignClient create(Throwable cause) {
+        //判断抛出异常是否为解码器抛出的业务异常
+        Enum<?> exceptionEnum = CommonResponseEnum.SERVICE_FALLBACK;
+        if(cause.getCause() instanceof BusinessException){
+            BusinessException businessException = (BusinessException) cause.getCause();
+            exceptionEnum = SystemEnumUtil.getExceptionEnum(businessException.getResult());
+        }
+        Enum<?> finalExceptionEnum = exceptionEnum;
+        return new DictTreeFeignClient() {
+            @Override
+            public HttpResult<SysDicTreePO> queryById(String id) {
+                log.error("{}异常，降级处理，异常为：{}","根据字典id获取字典数据",cause.toString());
+                throw new BusinessException(finalExceptionEnum);
+            }
+        };
+    }
+}