相关疑难解决方法(0)

我在json工作时遇到异常.我的JSONPresr类如下

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.UnsupportedEncodingException;

 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.json.JSONException;
 import org.json.JSONObject;

 import android.os.AsyncTask;
 import android.util.Log;

public class JSONParser {
 static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";

    // constructor
    public JSONParser() {

    }

    public JSONObject getJSONFromUrl(String url) {

        // Making HTTP request
        try {
            // defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);

            HttpResponse httpResponse = …

我正在为Android构建一个RESTful客户端,我对Jackson有疑问.
我得到以下JSON响应:

{
    "cars": [
        {
            "active": "true",
            "carName": "××× ×'פ ס×××ק×",
            "categoryId": {
                "licenseType": "××××××",
                "licenseTypeId": "1"
            },
            "id": "1401268",
            "insuranceDate": "2011-07-05T00:00:00+03:00",
            "lessonLength": "45",
            "licenseDate": "2011-07-05T00:00:00+03:00",
            "price": "100",
            "productionYear": "2009-07-05T00:00:00+03:00"
        },
        {
            "active": "true",
            "carName": "××©× ×××",
            "categoryId": {
                "licenseType": "×ש××ת",
                "licenseTypeId": "4"
            },
            "id": "1589151",
            "insuranceDate": "2011-04-13T00:00:00+03:00",
            "lessonLength": "30",
            "licenseDate": "2011-04-13T00:00:00+03:00",
            "price": "120",
            "productionYear": "2004-04-12T00:00:00+03:00"
        },............. etc

每个都是一个类似汽车的汽车:

public class Cars implements Serializable {
    private static final long serialVersionUID = 1L;
    private Integer id;
    private String carName;
    private …