您好我正在尝试解析MySQL的json数据并在eclipse中将其显示在xml上，但我无法解析它。我在警察注册项目上工作，我有一个用于在图像按钮上显示城市罪犯的表单，所以当点击图像按钮时，我想要在新的xml上显示有关罪犯的信息。必须通过JSON从MySQL解析信息，但我无法做到这一点。以下是我正在处理的代码
xml文件
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="36dp"
android:layout_marginTop="64dp"
android:text="Name:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="24dp"
android:text="CrimeType:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView3"
android:layout_below="@+id/textView3"
android:layout_marginTop="26dp"
android:text="Age:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView4"
android:layout_below="@+id/textView4"
android:layout_marginTop="19dp"
android:text="Sex:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView5"
android:layout_below="@+id/textView5"
android:layout_marginTop="22dp"
android:text="Info:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView6"
android:layout_below="@+id/textView6"
android:layout_marginTop="82dp"
android:text="Height:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/tvname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView3"
android:layout_marginLeft="40dp"
android:layout_toRightOf="@+id/textView3"
android:text="TextView" />
<TextView
android:id="@+id/tvcrimetype"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView4"
android:layout_alignLeft="@+id/tvname"
android:text="TextView" />
<TextView
android:id="@+id/tvage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView5"
android:layout_alignLeft="@+id/tvcrimetype"
android:text="TextView" />
<TextView
android:id="@+id/tvsex"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView6"
android:layout_alignLeft="@+id/tvage"
android:text="TextView" />
<TextView
android:id="@+id/tvinfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView7"
android:layout_alignLeft="@+id/tvsex"
android:text="TextView" />
<TextView
android:id="@+id/tvheight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/tvinfo"
android:layout_alignTop="@+id/textView7"
android:text="TextView" />
<Button
android:id="@+id/Bwanteddesing"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="14dp"
android:text="Button" />
</RelativeLayout>
wantedcriminalsdetails.java
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public class Wantedgetdata extends Activity {
TextView criminalname;
TextView criminalage;
TextView criminalcrimetype;
private ProgressDialog pDialog;
String criminal_id;
JSONParser jsonParser = new JSONParser();
private static final String url_criminal_detials = "http://divaexample.honor.es/wanted_criminals.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_POSTS = "posts";
private static final String TAG_CRIMINAL_ID = "CRIMINAL_ID";
private static final String TAG_NAME = "SUSPECT_NAME";
private static final String TAG_AGE_RANGE = "AGE_RANGE";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.wanted_design_details);
Intent i = getIntent();
criminal_id = i.getStringExtra(TAG_CRIMINAL_ID);
new GetProductDetails().execute();
}
class GetProductDetails extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Wantedgetdata.this);
pDialog.setMessage("Loading criminal details. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
protected String doInBackground(String... params) {
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
// Check for success tag
int success;
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("criminal_id", criminal_id));
// getting product details by making HTTP request
// Note that product details url will use GET request
JSONObject json = jsonParser.makeHttpRequest(
url_criminal_detials, "GET", params);
// check your log for json response
Log.d("Single criminal Details", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully received product details
JSONArray criminalObj = json
.getJSONArray(TAG_POSTS); // JSON Array
// get first product object from JSON Array
JSONObject criminal = criminalObj.getJSONObject(0);
// product with this pid found
// Edit Text
criminalname = (TextView) findViewById(R.id.tvname);
criminalage = (TextView) findViewById(R.id.tvage);
// display product data in EditText
criminalname.setText(criminal.getString(TAG_NAME));
criminalage.setText(criminal.getString(TAG_AGE_RANGE));
}else{
// product with pid not found
}
} catch (JSONException e) {
e.printStackTrace();
}
}
});
return null;
}
protected void onPostExecute(String file_url) {
// dismiss the dialog once got all details
pDialog.dismiss();
}
}
}