RestTemplate 调用SpringCloud服务

    //注入rest模板
    @Autowired
    private RestTemplate restTemplate;
    
    @Override
    public TravelInfoF07RespM01 execute(TravelInfoF07ReqtM01 params) throws Exception {
        //设置请求头信息（按照需求来  ，我这里设置了分页信息）
        HttpHeaders header = new HttpHeaders();
        header.setContentType(MediaType.parseMediaType(MEDIATYPE));
        header.add(ACCEPT, MediaType.APPLICATION_JSON.toString());
        header.add("pageIndex", "0");
        header.add("pageSize", "10");
        header.add("orderBy", "worklistDate DESC");
        //这个很重要 设置一个可用的token
        header.add("Authorization", "bearereyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE4MzkzOTU1OTksInVzZXJfbmFtZSI6ImFkbWluIiwiYXV0aG9yaXRpZXMiOlsiUk9MRV9BRE1JTiJdLCJqdGkiOiJjYWFiZGVlZi1kYjNmLTQ0NjYtODMyNi0zZTNkMDA5MjcxZjEiLCJjbGllbnRfaWQiOiJrMiIsInNjb3BlIjpbIm9wZW5pZCJdfQ.ifeK4OAxv-dXxdVJslL6e7uFK4EC0W3SzVaQRmnYwDH0X7yHKIIiyHSvzMFjj8KUcJjRxiz35_JehdofQGYq8xrKpM4IQwq455PkIm0IxHRtTi-8fP8XfGb_KyTtzK_tqVw41ejIpJQbGar7sTWveR5fyR7a-vxsEmMoy5Q8wL8Bvl4Y9ToOtzz-NkkIzl2AJvKdT_jCI2C50WqdlzY_UanGvRGoNiJCt7JyfjNvKctVVQVuzfLFmmidRh3FuWDTBo_pSzqJb2K0da7Ae7l75JAiO6gMhfyIcYHnUBhyf_kZFiSzi4qeToBR-yYSnYngbAuDgdK55bwWLqMIMVqn_Q");
        //这里我的理解是 将请求参数封装到这个类  
        HttpEntity<TravelInfoF07ReqtM01> paramsEntity = new HttpEntity<>(params,header);
        //模板发送请求 
        //参数一是路径就不用说了 参数二就是上面这个对象也就是请求参数，参数三是指定返回值类型 属性要和调用服务的返回类型属性一致
        TravelInfoF07RespM01 postForEntity = restTemplate.postForObject("http://k2platformdemo.k2software.cn:30009/user-service/api/tasks/todo", paramsEntity, TravelInfoF07RespM01.class);

//以下就是我的逻辑了 
        if(postForEntity.getWorklists() == null || postForEntity.getWorklists().size() < 1) {
            return postForEntity;
        }
        //获取所有待办
        List<TravelInfoF07RespS01> list = postForEntity.getWorklists();
        
        //创建过滤后的待办
        List<TravelInfoF07RespS01> list2 = new ArrayList<TravelInfoF07RespS01>();
        
        //流水号集合
        List<String> folioList = new ArrayList<>();
        //过滤流程和节点
        for (TravelInfoF07RespS01 travelInfoF07RespS01 : list) {
            //节点名
            String activityName = travelInfoF07RespS01.getActivityName().asText();
            if(params.getActivityName().equals(activityName)) {
                list2.add(travelInfoF07RespS01);
                folioList.add(travelInfoF07RespS01.getFolio());
            }
        }
        
        if(folioList == null || folioList.size() < 1){
            postForEntity.setWorklists(null);
            return postForEntity;
        }
        //查询当前流程 、节点表格数据
        TravelInfoF07SQL01IM01 sql01 = new TravelInfoF07SQL01IM01();
        sql01.setFolioList(folioList);
        List<TravelInfoF07SQL01OM01> QueryList = queryDAO.executeForObjectList("TravelInfoF07SQL01", sql01);
        
        
        //将过滤后的待办返回给响应DTO
        List<TravelInfoF07RespS01> list3 = new ArrayList<>();
        
        for (TravelInfoF07SQL01OM01 travelInfoF07SQL01OM01 : QueryList) {
            for (TravelInfoF07RespS01 travelInfoF07RespS01 : list2) {
                if(travelInfoF07SQL01OM01.getFolio().equals(travelInfoF07RespS01.getFolio())) {
                    travelInfoF07RespS01.setApplyName(travelInfoF07SQL01OM01.getApplyName());
                    travelInfoF07RespS01.setOwnerDept(travelInfoF07SQL01OM01.getOwnerDept());
                    travelInfoF07RespS01.setRmbAmount(travelInfoF07SQL01OM01.getRmbAmount());
                    list3.add(travelInfoF07RespS01);
                }
            }
        }
        
        HttpHeaders header2 = new HttpHeaders();
        header2.setContentType(MediaType.parseMediaType(MEDIATYPE));
        header2.add(ACCEPT, MediaType.APPLICATION_JSON.toString());
        header2.add("Authorization", "bearereyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE4MzkzOTU1OTksInVzZXJfbmFtZSI6ImFkbWluIiwiYXV0aG9yaXRpZXMiOlsiUk9MRV9BRE1JTiJdLCJqdGkiOiJjYWFiZGVlZi1kYjNmLTQ0NjYtODMyNi0zZTNkMDA5MjcxZjEiLCJjbGllbnRfaWQiOiJrMiIsInNjb3BlIjpbIm9wZW5pZCJdfQ.ifeK4OAxv-dXxdVJslL6e7uFK4EC0W3SzVaQRmnYwDH0X7yHKIIiyHSvzMFjj8KUcJjRxiz35_JehdofQGYq8xrKpM4IQwq455PkIm0IxHRtTi-8fP8XfGb_KyTtzK_tqVw41ejIpJQbGar7sTWveR5fyR7a-vxsEmMoy5Q8wL8Bvl4Y9ToOtzz-NkkIzl2AJvKdT_jCI2C50WqdlzY_UanGvRGoNiJCt7JyfjNvKctVVQVuzfLFmmidRh3FuWDTBo_pSzqJb2K0da7Ae7l75JAiO6gMhfyIcYHnUBhyf_kZFiSzi4qeToBR-yYSnYngbAuDgdK55bwWLqMIMVqn_Q");
        

这个东西真的很好用  又简单，前面的使用都有注释 。RestTemplate 的方法有好几个可以自己百度下