Java中?springcloud.openfeign應用案例解析

更新時間：2024年06月18日 10:54:15 作者：被程序耽誤的胡先生

使用OpenFeign能讓編寫Web?Service客戶端更加簡單,使用時只需定義服務接口,然后在上面添加注解,OpenFeign也支持可拔插式的編碼和解碼器,這篇文章主要介紹了Java中?springcloud.openfeign應用案例解析,需要的朋友可以參考下

OpenFeign是一個顯示聲明式的WebService客戶端。使用OpenFeign能讓編寫Web Service客戶端更加簡單。使用時只需定義服務接口，然后在上面添加注解。OpenFeign也支持可拔插式的編碼和解碼器。spring cloud對feign進行了封裝，使其支持MVC注解和HttpMessageConverts。和eureka（服務注冊中心）和ribbon組合可以實現(xiàn)負載均衡。在Spring Cloud中使用OpenFeign，可以做到使用HTTP請求訪問遠程服務，就像調(diào)用本地方法一樣的，開發(fā)者完全感知不到這是在調(diào)用遠程方法，更感知不到在訪問HTTP請求，非常的方便。

1 導入依賴

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
    <version>3.1.7</version>
</dependency>

2 openfeign接口類編寫

package com.sf.gis.taskmanage.event.feign;
import com.alibaba.fastjson.JSONObject;
import com.sf.gis.common.domain.dto.*;
import com.sf.gis.common.domain.vo.*;
import feign.Response;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
@FeignClient(contextId = "eventAllocationNewServiceFegin", name = "eventAllocationNewServiceFegin", url = "${newevent.prefixurl}")  
public interface EventAllocationNewService {
    /**
     * 1. POST 獲取工單號
     * @param dto
     * @param token
     * @param type
     * @return
     */
    @PostMapping(value = "/order/cOrderNumberRule/getNum", consumes = "application/json", produces = "application/json")
    EventCommonsVo workOrderNumber(@RequestBody WorkOrderNumberDto dto, @RequestHeader("Authorization") String token, @RequestHeader("content-type") String type);
/*
    EventCommonVo<WorkOrderNumberVo> workOrderNumber(@RequestBody WorkOrderNumberDto dto, @RequestHeader("token") String token, @RequestHeader("content-type") String type);
*/
    /**
     * 2創(chuàng)建工單接口
     * @param dto
     * @param token
     * @param type
     * @return
     */
    @PostMapping(value = "/order/cOrderNumberInfo/create", consumes = "application/json", produces = "application/json")
    EventCommonsVo createWorkOrder(@RequestBody CreateWorkOrderDto dto, @RequestHeader("Authorization") String token, @RequestHeader("content-type") String type);
    /**
     * 3 工單流轉(zhuǎn)
     * @paramwanderAboutDto
     * @param token
     * @param type
     * @return
     */
    @PostMapping(value = "/order/cOrderCirculation/create", consumes = "application/json", produces = "application/json")
    EventCommonsVo wanderAbout(@RequestBody ReReportingDto reReportingDto, @RequestHeader("Authorization") String token, @RequestHeader("content-type") String type);
    /**
     * 工單處置信息更新接口
     * @param workOrderUpdateDto
     * @param token
     * @param type
     * @return
     */
    @PostMapping(value = "/order/cOrderNumberInfo/updateProcessInfo", consumes = "application/json", produces = "application/json")
    EventCommonVo workOrderUpdate(@RequestBody WorkOrderUpdateDto workOrderUpdateDto, @RequestHeader("Authorization") String token, @RequestHeader("Content-Type") String type);
    /**
     * 工單處置信息更新接口
     * @param
     * @param token
     * @param type
     * @return
     */
    @PostMapping("/order/cOrderNumberInfo/updateProcessInfo")
    EventCommonVo workOrderCompleteUpdate(@RequestBody WorkOrderCompleteUpdateDto workOrderCompleteUpdateDto, @RequestHeader("Authorization") String token, @RequestHeader("content-type") String type);
    /**
     * 上傳附件
     */
    @RequestMapping(method = RequestMethod.POST,consumes = MediaType.MULTIPART_FORM_DATA_VALUE,value = "/minio/upload")
    JSONObject upload(@RequestPart("file") MultipartFile file,@PathVariable("fileName") String fileName, @PathVariable("orderNum")String orderNum, @RequestHeader("Authorization") String token);
    /**
     * 附件下載
     */
    @RequestMapping(method = RequestMethod.POST,consumes = MediaType.MULTIPART_FORM_DATA_VALUE,value = "/minio/download")
    Response download(@PathVariable("filename") String filename, @PathVariable("orderNum") String orderNum, @RequestHeader("Authorization") String token);
    /**
     * 工單狀態(tài)變更接口（對接到市里）
     * @param
     * @param token
     * @param type
     * @return
     */
    @PostMapping(value = "/order/cOrderStatusChange/sendMsg", consumes = "application/json", produces = "application/json")
    EventCommonVo orderStateUpdate(@RequestBody OrderChangeDto orderChangeDto, @RequestHeader("Authorization") String token, @RequestHeader("content-type") String type);
}