Java http接口对接

1.在工具类里添加方法
　　

/**
 * 发送Post请求
 * @param url 请求地址
 * @param jsonObject 参数
 * @param encoding 指定编码
 * @return body
 */
public static String postJson(String url, JSONObject jsonObject, String encoding) throws IOException{
    String body = "";
    //创建httpclient对象
    CloseableHttpClient client = HttpClients.createDefault();
    //创建post方式请求对象
    HttpPost httpPost = new HttpPost(url);
    //装填参数
    StringEntity s = new StringEntity(jsonObject.toString(), "utf-8");
    s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
            "application/json"));
    //设置参数到请求对象中
    httpPost.setEntity(s);
    //设置header信息
    //指定报文头【Content-type】、【User-Agent】
    httpPost.setHeader("Content-type", "application/json");
    httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

    //执行请求操作，并拿到结果（同步阻塞）
    CloseableHttpResponse response = client.execute(httpPost);
    //获取结果实体
    HttpEntity entity = response.getEntity();
    if (entity != null) {
        //按指定编码转换结果实体为String类型
        body = EntityUtils.toString(entity, encoding);
    }
    EntityUtils.consume(entity);
    //释放链接
    response.close();
    return body;
}
2.调用方法
　　

@Value("${application.findUser}")
    private String url;
    @Autowired
//    private UserService userService;
    @PostMapping("/post")
    public JSONObject addUser() throws IOException {
        JSONObject jsonObject=new JSONObject();
        jsonObject.put("companyName","筑建云");
        jsonObject.put("feedbackContent","55555666");
        jsonObject.put("housingEvaluation","罗江");
        jsonObject.put("housingPhonenumber","15808510571");
        jsonObject.put("nickName","宋小宝");
        jsonObject.put("phonenumber","18111831310");
        String jsonStr = JSONObject.toJSONString(jsonObject);
        String s = HttpUtils.postJson(url,jsonObject,"utf-8");
        JSONObject jsonObject1 = jsonObject.parseObject(s);
        return jsonObject1;
//        System.out.println(s);
//        userService.addUser(user);
    }
3.在application.yml里配置url地址

application:
    findUser: http://192.168.0.10:8080/feedback/feedback