使用RestTemplate发送post和delete请求

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使用RestTemplate发送post和delete请求，其中delete请求需要特别支持eg：

RestTemplate restTemplate = new RestTemplate();    restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory() {            @Override            protected HttpUriRequest createHttpUriRequest(HttpMethod httpMethod, URI uri) {                if (HttpMethod.DELETE == httpMethod) {                    return new HttpEntityEnclosingDeleteRequest(uri);                }                return super.createHttpUriRequest(httpMethod, uri);            }        });            HttpHeaders headers = new HttpHeaders();        MediaType type2 = MediaType.parseMediaType("application/json; charset=UTF-8");        headers.setContentType(type2);        headers.add("Accept", MediaType.APPLICATION_JSON.toString());                JSONObject jsonObj = new JSONObject();        value = DigestUtils.sha1Hex(DigestUtils.sha1Hex(value));                jsonObj.put("field", field2);        jsonObj.put("value", value);        jsonObj.put("reportTime", (new Date()).getTime());        jsonObj.put("type", "OFFLINE");                HttpEntity<String> formEntity = new HttpEntity<String>(jsonObj.toString(), headers);        JSONObject res = new JSONObject();        if(REPORT_ADD.equals(type)){            res = restTemplate.postForObject(url, formEntity, JSONObject.class);        }else if(REPORT_DELETE.equals(type)){            ResponseEntity<JSONObject> exchange = restTemplate.exchange(url, HttpMethod.DELETE, formEntity, JSONObject.class);            res = exchange.getBody();        }                if(res.get("status_code") != null && STATE_CODE_SUCESS.equals(res.get("status_code").toString().trim())){        }else{        if(res.get("status_code") == null){        msg = "未获取到返回状态码!";        }else if(STATE_CODE_ERROR.equals(res.get("status_code").toString().trim())){        msg = "系统错误!";        }else if(STATE_CODE_INVALID.equals(res.get("status_code").toString().trim())){        msg = "该接口未授权!";        }else if(STATE_CODE_NO_MATCH.equals(res.get("status_code").toString().trim())){        msg = "未匹配到（未查找到对应项）!";        }else if(STATE_CODE_REQUEST_FORMAT_ERROR.equals(res.get("status_code").toString().trim())){        msg = "请求参数格式校验失败!";        }        }        return msg;

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