我正在申请测验。用于问题描述的单选按钮和 textView 的内容文本设置正确...但是当我单击任何单选按钮时...应用程序被强制关闭..请检查代码..并告诉我是什么要做的修改..
这是我的jsp页面..
<%@page contentType="text/html; charset=UTF-8"%>
<%@page import="org.json.simple.JSONObject"%>
<%@page import="java.util.*,java.sql.*"%>
<%!
Connection con;
PreparedStatement ps;
ResultSet rs;
String x;
%>
<%
Class.forName("oracle.jdbc.driver.OracleDriver");
con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","pro","pro");
ps=con.prepareStatement("select * from c_question where id=1");
rs=ps.executeQuery();
JSONObject obj=new JSONObject();
obj.put("id",rs.getString(1));
obj.put("desc",rs.getString(2));
obj.put("a",rs.getString(3));
obj.put("b",rs.getString(4));
obj.put("c",rs.getString(5));
obj.put("d",rs.getString(6));
obj.put("ans",rs.getString(7));
out.print(obj);
out.flush();
%>
这是我的活动... import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;
public class JsonDemo extends Activity
{
JSONObject json;
HttpClient client;
TextView q_desc,c_or_w,id_check;
RadioButton rb_a,rb_b,rb_c,rb_d;
RadioGroup rg;
String ans;
int id;
final static String URL="http://10.0.2.2:7001/project/json.jsp";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.result_json);
q_desc=(TextView)findViewById(R.id.q_desc);
c_or_w=(TextView)findViewById(R.id.corr_incorrect);
id_check=(TextView)findViewById(R.id.id_check);
rg=(RadioGroup)findViewById(R.id.rg_option);
rb_a=(RadioButton)findViewById(R.id.opt_a);
rb_b=(RadioButton)findViewById(R.id.opt_b);
rb_c=(RadioButton)findViewById(R.id.opt_c);
rb_d=(RadioButton)findViewById(R.id.opt_d);
client=new DefaultHttpClient();
new Read().execute("desc");
}
public JSONObject getData()throws ClientProtocolException,IOException,JSONException
{
StringBuilder url=new StringBuilder(URL);
HttpGet get=new HttpGet(url.toString());
HttpResponse r=client.execute(get);
int status=r.getStatusLine().getStatusCode();
if(status == 200)
{
HttpEntity e=r.getEntity();
String data=EntityUtils.toString(e);
JSONObject last=new JSONObject(data);
return last;
}
else
{
Toast.makeText(JsonDemo.this, "error", Toast.LENGTH_SHORT);
return null;
}
}
public class Read extends AsyncTask<String,Integer,JSONObject> implements OnCheckedChangeListener
{
@Override
protected void onPostExecute(JSONObject result) {
// TODO Auto-generated method stub
try {
String desc=json.getString("desc");
String option_a=json.getString("a");
String option_b=json.getString("b");
String option_c=json.getString("c");
String option_d=json.getString("d");
ans=json.getString("ans");
q_desc.setText(desc);
rb_a.setText(option_a);
rb_b.setText(option_b);
rb_c.setText(option_c);
rb_d.setText(option_d);
rg.setOnCheckedChangeListener(this);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
protected JSONObject doInBackground(String... params) {
try {
json=getData();
return json;
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public void onCheckedChanged(RadioGroup rg, int checkedId) {
switch(checkedId)
{
case R.id.opt_a:
{
if(ans.equalsIgnoreCase("a"))
{
id=id+1;
c_or_w.setText("Correct");
id_check.setText(id);
}
else
{
id=id+1;
c_or_w.setText("InCorrect");
id_check.setText(id);
}
break;
}
case R.id.opt_b:
{
if(ans.equalsIgnoreCase("b"))
{
id=id+1;
c_or_w.setText("Correct");
id_check.setText(id);
}
else
{
id=id+1;
c_or_w.setText("InCorrect");
id_check.setText(id);
}
break;
}
case R.id.opt_c:
{
if(ans.equalsIgnoreCase("c"))
{
id=id+1;
c_or_w.setText("Correct");
id_check.setText(id);
}
else
{
id=id+1;
c_or_w.setText("InCorrect");
id_check.setText(id);
}
break;
}
case R.id.opt_d:
{
if(ans.equalsIgnoreCase("d"))
{
id=id+1;
c_or_w.setText("Correct");
id_check.setText(id);
}
else
{
id=id+1;
c_or_w.setText("InCorrect");
id_check.setText(id);
}
break;
}
}
}
}
}
原木猫...
04-06 09:48:10.849: W/ResourceType(354): No package identifier when getting value for resource number 0x00000001
04-06 09:48:10.859: D/AndroidRuntime(354): Shutting down VM
04-06 09:48:10.859: W/dalvikvm(354): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
04-06 09:48:10.889: E/AndroidRuntime(354): FATAL EXCEPTION: main
04-06 09:48:10.889: E/AndroidRuntime(354): android.content.res.Resources$NotFoundException: String resource ID #0x1
04-06 09:48:10.889: E/AndroidRuntime(354): at android.content.res.Resources.getText(Resources.java:201)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.TextView.setText(TextView.java:2817)
04-06 09:48:10.889: E/AndroidRuntime(354): at com.campuspro.start.JsonDemo.onCheckedChanged(JsonDemo.java:151)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.RadioGroup.setCheckedId(RadioGroup.java:172)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.RadioGroup.access$600(RadioGroup.java:52)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.RadioGroup$CheckedStateTracker.onCheckedChanged(RadioGroup.java:342)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.CompoundButton.setChecked(CompoundButton.java:127)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.CompoundButton.toggle(CompoundButton.java:86)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.RadioButton.toggle(RadioButton.java:69)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.widget.CompoundButton.performClick(CompoundButton.java:98)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.view.View$PerformClick.run(View.java:8816)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.os.Handler.handleCallback(Handler.java:587)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.os.Handler.dispatchMessage(Handler.java:92)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.os.Looper.loop(Looper.java:123)
04-06 09:48:10.889: E/AndroidRuntime(354): at android.app.ActivityThread.main(ActivityThread.java:4627)
04-06 09:48:10.889: E/AndroidRuntime(354): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 09:48:10.889: E/AndroidRuntime(354): at java.lang.reflect.Method.invoke(Method.java:521)
04-06 09:48:10.889: E/AndroidRuntime(354): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-06 09:48:10.889: E/AndroidRuntime(354): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-06 09:48:10.889: E/AndroidRuntime(354): at dalvik.system.NativeStart.main(Native Method)
04-06 09:48:13.419: I/Process(354): Sending signal. PID: 354 SIG: 9
04-06 09:51:50.868: W/ResourceType(388): No package identifier when getting value for resource number 0x00000001
04-06 09:51:50.868: D/AndroidRuntime(388): Shutting down VM
04-06 09:51:50.879: W/dalvikvm(388): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
04-06 09:51:50.909: E/AndroidRuntime(388): FATAL EXCEPTION: main
04-06 09:51:50.909: E/AndroidRuntime(388): android.content.res.Resources$NotFoundException: String resource ID #0x1
04-06 09:51:50.909: E/AndroidRuntime(388): at android.content.res.Resources.getText(Resources.java:201)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.TextView.setText(TextView.java:2817)
04-06 09:51:50.909: E/AndroidRuntime(388): at com.campuspro.start.JsonDemo$Read.onCheckedChanged(JsonDemo.java:147)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.RadioGroup.setCheckedId(RadioGroup.java:172)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.RadioGroup.access$600(RadioGroup.java:52)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.RadioGroup$CheckedStateTracker.onCheckedChanged(RadioGroup.java:342)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.CompoundButton.setChecked(CompoundButton.java:127)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.CompoundButton.toggle(CompoundButton.java:86)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.RadioButton.toggle(RadioButton.java:69)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.widget.CompoundButton.performClick(CompoundButton.java:98)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.view.View$PerformClick.run(View.java:8816)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.os.Handler.handleCallback(Handler.java:587)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.os.Handler.dispatchMessage(Handler.java:92)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.os.Looper.loop(Looper.java:123)
04-06 09:51:50.909: E/AndroidRuntime(388): at android.app.ActivityThread.main(ActivityThread.java:4627)
04-06 09:51:50.909: E/AndroidRuntime(388): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 09:51:50.909: E/AndroidRuntime(388): at java.lang.reflect.Method.invoke(Method.java:521)
04-06 09:51:50.909: E/AndroidRuntime(388): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-06 09:51:50.909: E/AndroidRuntime(388): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-06 09:51:50.909: E/AndroidRuntime(388): at dalvik.system.NativeStart.main(Native Method)
04-06 10:08:07.398: W/ResourceType(399): No package identifier when getting value for resource number 0x00000001
04-06 10:08:07.508: D/AndroidRuntime(399): Shutting down VM
04-06 10:08:07.508: W/dalvikvm(399): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
04-06 10:08:07.618: E/AndroidRuntime(399): FATAL EXCEPTION: main
04-06 10:08:07.618: E/AndroidRuntime(399): android.content.res.Resources$NotFoundException: String resource ID #0x1
04-06 10:08:07.618: E/AndroidRuntime(399): at android.content.res.Resources.getText(Resources.java:201)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.TextView.setText(TextView.java:2817)
04-06 10:08:07.618: E/AndroidRuntime(399): at com.campuspro.start.JsonDemo$Read.onCheckedChanged(JsonDemo.java:147)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.RadioGroup.setCheckedId(RadioGroup.java:172)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.RadioGroup.access$600(RadioGroup.java:52)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.RadioGroup$CheckedStateTracker.onCheckedChanged(RadioGroup.java:342)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.CompoundButton.setChecked(CompoundButton.java:127)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.CompoundButton.toggle(CompoundButton.java:86)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.RadioButton.toggle(RadioButton.java:69)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.widget.CompoundButton.performClick(CompoundButton.java:98)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.view.View$PerformClick.run(View.java:8816)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.os.Handler.handleCallback(Handler.java:587)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.os.Handler.dispatchMessage(Handler.java:92)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.os.Looper.loop(Looper.java:123)
04-06 10:08:07.618: E/AndroidRuntime(399): at android.app.ActivityThread.main(ActivityThread.java:4627)
04-06 10:08:07.618: E/AndroidRuntime(399): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 10:08:07.618: E/AndroidRuntime(399): at java.lang.reflect.Method.invoke(Method.java:521)
04-06 10:08:07.618: E/AndroidRuntime(399): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-06 10:08:07.618: E/AndroidRuntime(399): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-06 10:08:07.618: E/AndroidRuntime(399): at dalvik.system.NativeStart.main(Native Method)
04-06 10:08:12.848: I/Process(399): Sending signal. PID: 399 SIG: 9