详解使用Spring的restTemplete进行Http请求

/** rest templete*/public class RestTemplateTest {  //private static String url = "http://10.2.1.46:8080";  private static String url = "http://127.0.0.1:8080/test";  private static String autoDeploy = "/api/ddd/manages/yyy/1111";  public static void main(String[] args) throws UnsupportedEncodingException {    JSONObject token1 = LoginTest.login(url);    JSONObject token = new JSONObject();    token.put("token", token1.getString("token"));    token.put("userName", "chenchen.ming@56qq.com");    String name = "明辰晨";    token.put("name", URLEncoder.encode(name, "UTF-8"));    String jsonBody = DmsAutoDeployTest.dmsAutoDeployData();    autoDeploy(jsonBody,token.toJSONString());  }  /*  * 主要的post方法  */  public static void autoDeploy(String json,String token){    String autoDeployUrl = url + autoDeploy;    RestTemplate restTemplate = new RestTemplate();    HttpHeaders headers = new HttpHeaders();    //一定要设置好ContentType为utf8否则会乱码    MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");    headers.setContentType(type);    headers.add("Accept", MediaType.APPLICATION_JSON.toString());    headers.add("Authentication", token);//设置自定义session header    HttpEntity<String> formEntity = new HttpEntity<String>(json, headers);    Map<String, Object> parameterMap = new HashMap<>();    //entity = Header，uriVariables = Parameters;    restTemplate.postForObject(autoDeployUrl, formEntity, String.class, parameterMap);  }  /*  * 测试  */  public static void test4(){      JSONObject response = null;      Map<String,Object> param = new HashMap<>();      param.put("ming", "chyen");      String json = "haha";      try {        response = RestUtil.post("http://127.0.0.1:8080/cloud-master/api/release/manages/detail", JSONObject.class,null,null,json);      } catch (Exception e) {        e.printStackTrace();      }      System.out.println(response);  }  /**   * 测试   */  public static void test(){    RestTemplate restTemplate = new RestTemplate();    Map<String, Object> parameterMap = new HashMap<>();    restTemplate.getForObject("url", String.class,parameterMap);    //factory.createRequest(uri, httpMethod)  }}

/** * 使用Spring的restTemplate进行http请求 * @author Mingchenchen * */public class RestUtil {  private static RestTemplate restTemplate = new RestTemplate();  /**   * Get方法   *    * @param url:地址   * @param returnClassName:返回对象类型,如:String.class   * @param parameters:parameter参数   * @return   */  public static <T> T get(String url, Class<T> returnClassName, Map<String, Object> parameters){    if (parameters == null) {      return restTemplate.getForObject(url, returnClassName);    }    return restTemplate.getForObject(url, returnClassName, parameters);  }  /**   * post请求,包含了路径,返回类型,Header,Parameter   *    * @param url:地址   * @param returnClassName:返回对象类型,如:String.class   * @param inputHeader   * @param inputParameter   * @param jsonBody   * @return   */  public static <T> T post(String url,Class<T> returnClassName,Map<String,Object> inputHeader,Map<String,Object> inputParameter,String jsonBody){    //请求Header    HttpHeaders httpHeaders = new HttpHeaders();    //拼接Header    if (inputHeader != null) {      Set<String> keys = inputHeader.keySet();       for (Iterator<String> i = keys.iterator(); i.hasNext();) {         String key = (String) i.next();         httpHeaders.add(key, inputHeader.get(key).toString());       }     }    //设置请求的类型及编码    MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");    httpHeaders.setContentType(type);    httpHeaders.add("Accept", "application/json");    List<MediaType> acceptableMediaTypes = new ArrayList<>();    acceptableMediaTypes.add(MediaType.ALL);    httpHeaders.setAccept(acceptableMediaTypes);    HttpEntity<String> formEntity = new HttpEntity<String>(jsonBody, httpHeaders);    if (inputParameter==null) {      return restTemplate.postForObject(url, formEntity, returnClassName);    }    return restTemplate.postForObject(url, formEntity, returnClassName, inputParameter);  }}