hey there guys and girls i have this code that should download a json object and then save it to internal memory, i keep getting stuck here
try{
//connects to mySQL
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://10.0.2.2/textures_story_list.php");
HttpResponse response = client.execute(post);
//captures the response
entity = response.getEntity();
}catch(Exception e) {
Log.e("log_tag", "Error in http connection "+e.toString());
}
try{
is = entity.getContent();
String FILENAME = "story.json";
//gives file name
FileOutputStream output = openFileOutput(FILENAME, MODE_WORLD_READABLE);
//creates new StreamWriter
OutputStreamWriter writer = new OutputStreamWriter(output);
//writes json with file name story.json
writer.write(is);
writer.flush();
//closes writer
writer.close();
}catch(Exception e) {
Log.e("log_tag", "Error saving string "+e.toString());
}
i keep getting erros on writer.write(is); eclipse asks me to change it to an int, what would be the best way to code from the line
entity = response.getEntity();
???
here is my full code
public class MainActivity extends Activity {
String storyObj = "";
Object json = null;
HttpEntity entity = null;
InputStream is = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//button that saves the file from mySQL
Button save = (Button) findViewById(R.id.downloadBtn);
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
saveJson();
}
});
//Button that opens the file from InternalMemory
Button open = (Button) findViewById(R.id.showBtn);
open.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openJson();
}
});
//end of onCreate()
}
//saveJson pull a JSON file from mySQl server then saves that file in its JSON type eg .json
public void saveJson(){
TextView test = (TextView) findViewById(R.id.showView);
try{
//connects to mySQL
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://10.0.2.2/textures_story_list.php");
HttpResponse response = client.execute(post);
//captures the response
entity = response.getEntity();
}catch(Exception e) {
Log.e("log_tag", "Error in http connection "+e.toString());
}
try{
is = entity.getContent();
String FILENAME = "story.json";
//gives file name
FileOutputStream output = openFileOutput(FILENAME, MODE_WORLD_READABLE);
//creates new StreamWriter
OutputStreamWriter writer = new OutputStreamWriter(output);
//writes json with file name story.json
writer.write(is);
writer.flush();
//closes writer
writer.close();
}catch(Exception e) {
Log.e("log_tag", "Error saving string "+e.toString());
}
//end of saveJson()
}
private char[] Object(Object json2) {
// TODO Auto-generated method stub
return null;
}
public void openJson(){
TextView test = (TextView) findViewById(R.id.showView);
try{
FileInputStream fileInput = openFileInput("story.json");
BufferedReader inputReader = new BufferedReader(new InputStreamReader(fileInput, "UTF-8"), 8);
StringBuilder strBuilder = new StringBuilder();
String line = null;
while ((line = inputReader.readLine()) != null) {
strBuilder.append(line + "\n");
}
fileInput.close();
storyObj = strBuilder.toString();
}catch(IOException e){
Log.e("log_tag", "Error building string "+e.toString());
}
try{
JSONArray jArray = new JSONArray(storyObj);
String storyNames = "";
for(int i = 0;i<jArray.length();i++){
storyNames += jArray.getJSONObject(i).getString("story_name") +"\n";
}
test.setText(storyNames);
}catch(JSONException e) {
Log.e("log_tag", "Error returning string "+e.toString());
}
return;
//and of openJson()
}
//end of class body
}
hope you can help me with this, been taking so long to get it to work!!!
added extra code from boris... is this where i put the code ?
try{
//connects to mySQL
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://10.0.2.2/textures_story_list.php");
HttpResponse response = client.execute(post);
//captures the response
entity = response.getEntity();
InputStream entityStream = entity.getcontent();
StringBuilder entityStringBuilder = new StringBuilder();
byte [] buffer = new byte[1024];
int bytesReadCount;
while ((bytesReadCount = entityStream(read(buffer)) > 0)) {
entityStringBuilder.append(new String(buffer, 0, bytesReadCount));
}
String entityString = entityStringBuilder.toString();
Integer responseInteger = Integer.valueOf(entityString);
}catch(Exception e) {
Log.e("log_tag", "Error in http connection "+e.toString());
}
if it is i get an error on read
Try this code
This is weird case, I edited my previous answer to fix this problem of yours. However: another question was asked, so here goes this portion of my previous answer:
About the error you get - you are trying to cast the entity of the response directly to an Integer. This will always fail, because Integer is not superclass of
HttpEntity
. You need to read the contents of the entity in aString
and then parse the contents of the string to integer:this is not highly optimized, but does the job. From then on you can use the
responseInteger
value as you like . However if you want to dowriter.write
you will needString
value, notInteger
. Thus I recommend you to useentityString
.