我尝试从数据库中获取信息并将其写入文本视图，以便在输入订单名称后显示数据库中的信息
package com.example.mauricio.pairlines;
import android.content.Intent;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class Seeorder extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_seeorder);
final EditText etOrdernum = (EditText) findViewById(R.id.etOrdernum);
final TextView tvPilotname = (TextView) findViewById(R.id.tvPilotname);
final TextView tvPilotcash = (TextView) findViewById(R.id.tvPilotcash);
final TextView tvDate = (TextView) findViewById(R.id.tvDate);
final TextView tvPlanemodel = (TextView) findViewById(R.id.tvPlanemodel);
final TextView tvHoobsstart = (TextView) findViewById(R.id.tvHoobsstart);
final TextView tvHoobsend = (TextView) findViewById(R.id.tvHoobsend);
final TextView tvWatchtime = (TextView) findViewById(R.id.tvWatchtime);
final TextView tvHoobstime = (TextView) findViewById(R.id.tvHoobstime);
final TextView tvGas = (TextView) findViewById(R.id.tvGas);
final TextView tvLiter = (TextView) findViewById(R.id.etLiter);
final TextView tvRepairname = (TextView) findViewById(R.id.tvRepairname);
final TextView tvRepaircost = (TextView) findViewById(R.id.tvRepaircost);
final TextView tvTravelexpense = (TextView) findViewById(R.id.tvTravelexpense);
final TextView tvOthername1 = (TextView) findViewById(R.id.tvOthername1);
final TextView tvOthercost1 = (TextView) findViewById(R.id.tvOthercost1);
final Button bTickets = (Button) findViewById(R.id.bTickets);
final Button bBack = (Button) findViewById(R.id.bBack);
final Button btSerach = (Button) findViewById(R.id.bSerach);
btSerach.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
final String ordernum = etOrdernum.getText().toString();
Response.Listener<String> responseListener = new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
int succees = jsonResponse.getInt("success");
if(succees==1){
JSONArray array = jsonResponse.getJSONArray("myorder");
JSONObject jsonName1 = array.getJSONObject(0);
String ordernum= jsonName1.getString("ordernum")+" Numero de orden";
JSONObject jsonName2 = array.getJSONObject(1);
String pilotname= jsonName2.getString("pilotname")+" Nombre del piloto";
JSONObject jsonName3 = array.getJSONObject(2);
String pilotcash= jsonName3.getString("pilotcash")+"$ Sueldo del piloto";
JSONObject jsonName4 = array.getJSONObject(3);
String date= jsonName4.getString("date")+" Fecha ";
JSONObject jsonName5 = array.getJSONObject(4);
String planemodel= jsonName5.getString("planemodel")+" Modelo del avion";
JSONObject jsonName6 = array.getJSONObject(5);
String hoobsstart= jsonName6.getString("hoobsstart")+" Hoobs inicio";
JSONObject jsonName7 = array.getJSONObject(6);
String hoobsend= jsonName7.getString("hoobsend")+"Hoobs final";
JSONObject jsonName8 = array.getJSONObject(7);
String watchtime= jsonName8.getString("watchtime")+" Watch time";
JSONObject jsonName9 = array.getJSONObject(8);
String hoobstime= jsonName9.getString("hoobstime")+" Hoobstime";
JSONObject jsonName10 = array.getJSONObject(9);
String gas= jsonName10.getString("gas")+" Combustible";
JSONObject jsonName11 = array.getJSONObject(10);
String liter= jsonName11.getString("liter")+" litros de combustible";
JSONObject jsonName12 = array.getJSONObject(11);
String repairname= jsonName12.getString("repairname")+" Nombre de refaccion";
JSONObject jsonName13 = array.getJSONObject(12);
String repaircost= jsonName13.getString("repaircost")+"$ Costo de refaccion";
JSONObject jsonName14 = array.getJSONObject(13);
String travelexpense= jsonName14.getString("travelexpense")+"$ Costo viaticos";
JSONObject jsonName15 = array.getJSONObject(13);
String othername1= jsonName15.getString("othername1")+"$ Otros Concepto";
JSONObject jsonName16 = array.getJSONObject(13);
String othercost1= jsonName16.getString("othercost1")+"$ Otros precio";
tvPilotname.setText(pilotname);
tvPilotcash.setText(pilotcash);
tvDate.setText(date);
tvPlanemodel.setText(planemodel);
tvHoobsstart.setText(hoobsstart);
tvHoobsend.setText(hoobsend);
tvWatchtime.setText(watchtime);
tvHoobstime.setText(hoobstime);
tvGas.setText(gas);
tvLiter.setText(liter);
tvRepairname.setText(repairname);
tvRepaircost.setText(repaircost);
tvTravelexpense.setText(travelexpense);
tvOthername1.setText(othername1);
tvOthercost1.setText(othercost1);
}else{
AlertDialog.Builder builder = new AlertDialog.Builder(Seeorder.this);
builder.setMessage("La orden no existe")
.setNegativeButton("Retry",null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
SeeorderRequest seeorderRequest = new SeeorderRequest(ordernum, responseListener);
RequestQueue queue = Volley.newRequestQueue(Seeorder.this);
queue.add(seeorderRequest);
bBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent registerIntent =new Intent(Seeorder.this, UserArea.class);
Seeorder.this.startActivity(registerIntent);
}
});
}
});
}
}
这是logcat
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: org.json.JSONException: Index 1 out of range [0..1)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at org.json.JSONArray.get(JSONArray.java:293)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at org.json.JSONArray.getJSONObject(JSONArray.java:521)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at com.example.mauricio.pairlines.Seeorder$1$1.onResponse(Seeorder.java:70)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at com.example.mauricio.pairlines.Seeorder$1$1.onResponse(Seeorder.java:59)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:30)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Handler.handleCallback(Handler.java:739)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Looper.loop(Looper.java:135)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5254)
08-25 14:36:55.833 4782-4782/com.example.mauricio.pairlines W/System.err: at java.lang.reflect.Method.invoke(Native Method)
08-25 14:36:55.834 4782-4782/com.example.mauricio.pairlines W/System.err: at java.lang.reflect.Method.invoke(Method.java:372)
08-25 14:36:55.834 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
08-25 14:36:55.834 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)
08-25 14:37:04.248 4782-4782/com.example.mauricio.pairlines I/ViewRootImpl: CPU Rendering VSync enable = false
08-25 14:37:07.594 4782-4782/com.example.mauricio.pairlines I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@2c32922a time:3689475
08-25 14:37:09.092 4782-4782/com.example.mauricio.pairlines I/Timeline: Timeline: Activity_launch_request id:com.example.mauricio.pairlines time:3690974
08-25 14:37:09.203 4782-4782/com.example.mauricio.pairlines I/ViewRootImpl: CPU Rendering VSync enable = false
08-25 14:37:09.392 4782-4821/com.example.mauricio.pairlines D/OpenGLRenderer: endAllStagingAnimators on 0xb75eb718 (RippleDrawable) with handle 0xb765d220
08-25 14:37:09.398 4782-4782/com.example.mauricio.pairlines I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@2e649e84 time:3691280
08-25 14:37:10.182 4782-4782/com.example.mauricio.pairlines I/ViewRootImpl: CPU Rendering VSync enable = false
08-25 14:37:10.452 4782-4782/com.example.mauricio.pairlines I/ViewRootImpl: CPU Rendering VSync enable = false
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: org.json.JSONException: Index 1 out of range [0..1)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at org.json.JSONArray.get(JSONArray.java:293)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at org.json.JSONArray.getJSONObject(JSONArray.java:521)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at com.example.mauricio.pairlines.Seeorder$1$1.onResponse(Seeorder.java:70)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at com.example.mauricio.pairlines.Seeorder$1$1.onResponse(Seeorder.java:59)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60)
08-25 14:37:19.005 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:30)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Handler.handleCallback(Handler.java:739)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at android.os.Looper.loop(Looper.java:135)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5254)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at java.lang.reflect.Method.invoke(Native Method)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at java.lang.reflect.Method.invoke(Method.java:372)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
08-25 14:37:19.006 4782-4782/com.example.mauricio.pairlines W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)
这是我从db获得的响应，如果我使用postman发送ordernum
{"success":1,"myorder":[{"ordernum":"1","pilotname":"1","pilotcash":"2","date":"3","planemodel":"4","hoobsstart":"5","hoobsend":"6","watchtime":"7","hoobstime":"8","gas":"9","liter":null,"repairname":"11","repaircost":"12","travelexpense":null,"othername1":"14","othercost1":"15"}]}
问题是我甚至无法在logcat上找到问题就好了 JSONException：索引1超出范围[0..1]，我认为这意味着插槽1中的myorder数组没有任何内容，但它应该是＆＃34; pilotname＆＃34;：＆＃34; 1＆＃34;
答案 0 :(得分：2)
您只需要对if语句进行一些重构，因为数组只有一个项目：
if(succees==1){
JSONArray array = jsonResponse.getJSONArray("myorder");
JSONObject orderObj = array.getJSONObject(0);
String ordernum= orderObj.getString("ordernum")+" Numero de orden";
String pilotname= orderObj.getString("pilotname")+" Nombre del piloto";
String pilotcash= orderObj.getString("pilotcash")+"$ Sueldo del piloto";
String date= orderObj.getString("date")+" Fecha ";
String planemodel= orderObj.getString("planemodel")+" Modelo del avion";
String hoobsstart= orderObj.getString("hoobsstart")+" Hoobs inicio";
String hoobsend= orderObj.getString("hoobsend")+"Hoobs final";
String watchtime= orderObj.getString("watchtime")+" Watch time";
String hoobstime= orderObj.getString("hoobstime")+" Hoobstime";
String gas= orderObj.getString("gas")+" Combustible";
String liter= orderObj.getString("liter")+" litros de combustible";
String repairname= orderObj.getString("repairname")+" Nombre de refaccion";
String repaircost= orderObj.getString("repaircost")+"$ Costo de refaccion";
String travelexpense= orderObj.getString("travelexpense")+"$ Costo viaticos";
String othername1= orderObj.getString("othername1")+"$ Otros Concepto";
String othercost1= orderObj.getString("othercost1")+"$ Otros precio";
请看一下这篇文章：http://www.technotalkative.com/android-json-parsing/