嗨在这段代码中，前两个值显示数据，第三个字符串数组给出空指针Exception但数据来自database.can任何一个请帮助我。
此值仅显示NullPointerException
patient_main_type_name[i] = JA.getJSONObject(i).getString("patient_main_type_name");
patient_type_name[i] = JA.getJSONObject(i).getString("patient_type_name");
religion_name[i] = JA.getJSONObject(i).getString("religion_name");
caste_name[i] = JA.getJSONObject(i).getString("caste_name");
类文件
String result = DatabaseUtility.executeQueryPhp("getpatient","");
System.out.print(result);
try
{
JSONArray JA = new JSONArray(result);
initial_name = new String[JA.length()];
initial_id = new String[JA.length()];
patient_main_type_name = new String[JA.length()];
patient_type_name = new String[JA.length()];
religion_name= new String[JA.length()];
caste_name= new String[JA.length()];
for(int i=0;i<JA.length();i++)
{
initial_name[i] = JA.getJSONObject(i).getString("initial_name");
initial_id[i] = JA.getJSONObject(i).getString("initial_id");
patient_main_type_name[i] = JA.getJSONObject(i).getString("patient_main_type_name");
patient_type_name[i] = JA.getJSONObject(i).getString("patient_type_name");
religion_name[i] = JA.getJSONObject(i).getString("religion_name");
caste_name[i] = JA.getJSONObject(i).getString("caste_name");
}
spinner_fn();
} catch(Exception e) {
Log.e("Fail 3", e.toString());
}
private void spinner_fn() {
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(
getApplicationContext(), android.R.layout.simple_spinner_item,
initial_name);
dataAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
intial.setAdapter(dataAdapter);
intial.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
Log.e("Position new", initial_name[position]);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<String>(
getApplicationContext(), android.R.layout.simple_spinner_item,
patient_main_type_name);
dataAdapter1
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
pmaincat.setAdapter(dataAdapter1);
pmaincat.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
Log.e("Position new", patient_main_type_name[position]);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
logcat的
10-31 10:08:23.045: E/Fail 3(7235): java.lang.NullPointerException: storage == null
10-31 10:08:23.045: E/Fail 3(7235): org.json.JSONException: No value for patient_main_type_name
10-31 10:08:23.054: E/Fail 3(7235): org.json.JSONException: No value for patient_type_name
json数据
[{"initial_id":"1","initial_name":"Mr.","sex":"male","to_patient":"1","to_employee":"1"},{"initial_id":"2","initial_name":"Mrs.","sex":"female","to_patient":"1","to_employee":"1"},{"initial_id":"3","initial_name":"","sex":"male","to_patient":"1","to_employee":"1"}] [{"patient_main_type_id":"36","patient_main_type_name":"asdasdsa","billing_type":"TPA"},{"patient_main_type_id":"37","patient_main_type_name":"sasa","billing_type":"TPA"},{"patient_main_type_id":"85","patient_main_type_name":"awsome","billing_type":"CGHS"},{"patient_main_type_id":"86","patient_main_type_name":"ssssssssss","billing_type":"CGHS"},{"patient_main_type_id":"87","patient_main_type_name":"ddddddd","billing_type":"TPA"}] [{"patient_type_id":"1","patient_type_name":"abc","patient_main_type_id":"36"},{"patient_type_id":"2","patient_type_name":"pqr","patient_main_type_id":"36"},{"patient_type_id":"3","patient_type_name":"lmn","patient_main_type_id":"85"}]