繁体   English   中英

将JSON对象解析为Restful Web服务

[英]Parsing JSON Object to Restful web service

我正在开发一个通过JSON与mysql数据库通信的android注册系统。 宁静的Web服务是用PHP和Slim库编写的。 我已经通过将JSON有效负载数据解析为其中的内容,使用Advanced Rest Client App测试了Web服务,它的工作效果非常好,如下所示。 目前,我正在尝试将用户数据从android应用解析到服务器,并且显示此错误(Error parsing data org.json.JSONException: Value <html><head><title>Slim of type java.lang.String cannot be converted to JSONObject) 我会告诉我我在做错什么,因为我觉得错误来自我的JSONParser类和Userfunction 提前致谢。

这是我的测试结果

{ “标记”: “注册”, “成功”:1, “错误”:0, “UID”: “547d92b0480711.90973742”,
“结果”:{ “名字”: “米什”, “姓氏”: “哈里”, “电子邮件”: “mishael19@gmail.com”}}

这是JSONParser

public class JSONParser2 {

static InputStream is = null;
static JSONObject jObj = null;
static String json = "";

// constructor
public JSONParser2() {
}

public JSONObject makeHttpRequest(String url, String method, List<NameValuePair> params){

    try{
        if(method.equals("POST")){
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity(params));

            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        }else if(method == "GET"){
            DefaultHttpClient httpClient = new DefaultHttpClient();
            String paramString = URLEncodedUtils.format(params, "utf-8");
            url += "?" + paramString;
            HttpGet httpGet = new HttpGet(url);

            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        }
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }


    try{
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        json = sb.toString();
    } catch (Exception e) {
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }


    // try parse the string to a JSON object
    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

    // return JSON String
    return jObj;    
}
}

这是我的用户功能

public class UserFunctions {

private JSONParser2 jsonParser2;

private static String signupURL = "http://globalpadtutorials.globalpad.info/loginSignup/v1/signup";

private static String signup_tag = "signup";

private static String postMethod = "POST";

public UserFunctions(){
    jsonParser2 = new JSONParser2();
}

public JSONObject signupUser(String fname, String lname, String email, String pwd){

    List<NameValuePair> params = new ArrayList<NameValuePair>();
    params.add(new BasicNameValuePair("tag", signup_tag));
    params.add(new BasicNameValuePair("firstname", fname));
    params.add(new BasicNameValuePair("lastname", lname));
    params.add(new BasicNameValuePair("email", email));
    params.add(new BasicNameValuePair("password", pwd));

    JSONObject json = jsonParser2.makeHttpRequest(signupURL, postMethod, params);
     Log.e("JSON", json.toString());
    return json;
}
}

错误堆栈

12-02 11:04:19.681: E/JSON Parser(10024): Error parsing data org.json.JSONException: Value <html>   
<head><title>Slim of type java.lang.String cannot be converted to JSONObject

PHP代码

function createUser(){

$request = \Slim\Slim::getInstance()->request();
$resp = \Slim\Slim::getInstance()->response();
$resp['Content-Type'] = 'application/json; charset=utf-8';
$body = $request->getBody();
$users = json_decode($body);
$dbhandler = new DbHandler();
$tag = $users->tag;
$fname = $users->firstname;
$lname = $users->lastname;
$email = $users->email;
$pwd = $users->password;

$response = array("tag" => $tag, "success" => 0, "error" => 0);

if($tag == 'signup') {
    if ($dbhandler->userExisted($email)) {
        $response["error"] = 2;
        $response["error_msg"] = "User already existed";
        echo json_encode($response);
    } else {
        $result = $dbhandler->addUser($fname, $lname, $email, $pwd);
        if ($result != false) {
            $response["success"] = 1;
            var_dump($result);
            $response["uid"] = $result["user_id"];
            $response["result"]["firstname"] = $result["firstname"];
            $response["result"]["lastname"] = $result["lastname"];
            $response["result"]["email"] = $result["email"];
            echo json_encode($response);
        } else {
            $response["error"] = 1;
            $response["error_msg"] = "An error occured during sign up";
            echo json_encode($response);
        }
    }
} else{
    $response["error"] = 1;
    $response["error_msg"] = "Invalid tag request: ".$tag;
    echo json_encode($response);
}
}

html错误

Slim Application Errorbody {margin:0; padding:30px; font:12px / 1.5 Helvetica,Arial,Verdana,sans-serif;} h1 {margin:0; font-size:48px; font-weight:normal; line-height: 48像素;} {强显示:内联块;宽度:65px;}

苗条的应用程序错误

由于出现以下错误,该应用程序无法运行:

细节

类型: ErrorException 代码: 8 消息:试图获取非对象文件的属性 /home/globa390/public_html/globalpadtutorials/loginSignup/v1/index.php 行: 63

跟踪

  #0 /home/globa390/public_html/globalpadtutorials/loginSignup/v1/index.php(63):Slim \\ Slim :: handleErrors(8,'试图获取p ...','/ home / globa390 / ... ',63,数组)\n 12-02 11:55:50.366:E / JSON(27492):#1 [内部函数]:createUser()\n 12-02 11:55:50.366:E / JSON(27492):#2 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Route.php(462):call_user_func_array('createUser',Array)\n 12-02 11:55:50.366:E / JSON(27492):#3 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Slim.php(1326):Slim \\ Route-> dispatch()\n 12-02 11:55:50.366:E / JSON(27492):#4 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Middleware/Flash.php(85):Slim \\ Slim-> call()\n 12-02 11:55:50.366:E / JSON(27492):#5 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Middleware/MethodOverride.php(92):Slim \\ Middleware \\ Flash-> call ()\n 12-02 11:55:50.366:E / JSON(27492):#6 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Middleware/PrettyExceptions.php(67):Slim \\ Middleware \\ MethodOverride-> call ()\n 12-02 11:55:50.366:E / JSON(27492):#7 /home/globa390/public_html/globalpadtutorials/loginSignup/library/Slim/Slim.php(1271):Slim \\ Middleware \\ PrettyExceptions-> call()\n 12-02 11:55:50.366:E / JSON(27492):#8 /home/globa390/public_html/globalpadtutorials/loginSignup/v1/index.php(12):Slim \\ Slim-> run()\n 12-02 11:55:50.366:E / JSON(27492):#9 {main} 

 public JSONObject signupUser(String fname, String lname, String email, String pwd){

      List<NameValuePair> params = new ArrayList<NameValuePair>(5);
      params.add(new BasicNameValuePair("tag", signup_tag));
      params.add(new BasicNameValuePair("firstname", fname));
      params.add(new BasicNameValuePair("lastname", lname));
      params.add(new BasicNameValuePair("email", email));
      params.add(new BasicNameValuePair("password", pwd));

      String jsonstr = jsonParser2.makeHttpRequest(signupURL, postMethod, params);
  //cast String into jsonobject
  JSONObject json = new JSONObject(jsonStr);
  return json;

}

您的网址返回带有404错误的html页面。 这就是为什么您不能将其解析为json的原因。

我也有同样的问题。 向您的服务器管理员询问使用该数据库用于Web和移动设备的权限。 之后,将您的php文件粘贴到public_html中。

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM