我正在开发android应用程序。我们的java开发团队编写了restfull web服务 读取和写入data.i成功读取数据并显示到device.i中使用以下android代码插入数据，但它无法正常工作。
public class MainActivity extends Activity
{
ProgressDialog pd;
List<NameValuePair>list;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Mytask().execute();
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public class Mytask extends AsyncTask<String,String,String>
{
@Override
protected void onPostExecute(String result)
{
// TODO Auto-generated method stub
super.onPostExecute(result);
Toast.makeText(getBaseContext(), "Inser Record Succesfully", Toast.LENGTH_LONG).show();
pd.dismiss();
}
@Override
protected void onPreExecute()
{
// TODO Auto-generated method stub
super.onPreExecute();
pd=new ProgressDialog(MainActivity.this);
pd.setMessage("Please Wait");
pd.show();
}
@Override
protected String doInBackground(String... params)
{
// TODO Auto-generated method stub
pushdata();
return null;
}
}
public void pushdata()
{
try
{
HttpClient client=new DefaultHttpClient();
HttpPost post=new HttpPost("http://192.168.1.239:8080/KesariRating/rating/add");
// add data to url
list=new ArrayList<NameValuePair>(5);
list.add(new BasicNameValuePair("exce","e"));
list.add(new BasicNameValuePair("vgood","null"));
list.add(new BasicNameValuePair("good","null"));
list.add(new BasicNameValuePair("poor","null"));
list.add(new BasicNameValuePair("fair","null"));
post.setEntity(new UrlEncodedFormEntity(list));
HttpResponse response=client.execute(post);
HttpEntity entity=response.getEntity();
}
catch(Exception e)
{
Log.d("Error in Push","",e);
}
}
}
你能告诉我在那段代码中我做错了什么。我认为我们需要创建类对象并发送给它然后它会工作。那么如何在上面的代码中创建类对象并发送给它。我还发送了Web服务的完整源代码。这是控制器
public class RatingController
{
@ResponseBody
@RequestMapping(value="/hello/{name}",method=RequestMethod.GET)
public static String sayhello(@PathVariable String name)
{
return "Hello "+name ;
}
@ResponseBody
@RequestMapping(value="/sayhello/{name}",method=RequestMethod.GET)
public static String add(@PathVariable String name)
{
RatingCore ratingCore = new RatingCore();
ratingCore.setExcellent("t");
ratingCore.setVgood("t");
RatingOperation.addRating(ratingCore);
return "Hello "+name ;
}
@ResponseBody
@RequestMapping(value="/add",method=RequestMethod.POST)
public static boolean add(@RequestBody RatingCore objRatingCore)
{
return RatingOperation.addRating(objRatingCore);
}
@ResponseBody
@RequestMapping(value="/getcount",method=RequestMethod.GET)
public static RatingCore getCount()
{
return RatingOperation.getCount();
}
}
这是java代码
public class RatingCore {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;
private String excellent;
private String vgood;
private String good;
private String poor;
private String fair;
private Date timestamp;
public RatingCore() {
}
public RatingCore(int id, String excellent, String vgood, String good,
String poor, String fair, Timestamp timestamp) {
super();
this.id = id;
this.excellent = excellent;
this.vgood = vgood;
this.good = good;
this.poor = poor;
this.fair = fair;
this.timestamp = timestamp;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getExcellent() {
return excellent;
}
public void setExcellent(String excellent) {
this.excellent = excellent;
}
public String getVgood() {
return vgood;
}
public void setVgood(String vgood) {
this.vgood = vgood;
}
public String getGood() {
return good;
}
public void setGood(String good) {
this.good = good;
}
public String getPoor() {
return poor;
}
public void setPoor(String poor) {
this.poor = poor;
}
public String getFair() {
return fair;
}
public void setFair(String fair) {
this.fair = fair;
}
public Date getTimestamp() {
return timestamp;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
}
答案 0 :(得分：0)
我的代码是将一些数据发送到Server数据库，我希望它能帮到你
private void validat_user(String stg1, String stg2,String stg3, String stg4,String stg5, String stg6,String stg7, String stg8,String stg9, String stg10,String stg11)
{
WebServiceTask wst = new WebServiceTask(WebServiceTask.POST_TASK, this, "Authentication in progress...");
wst.addNameValuePair("A_ID", stg1);
wst.addNameValuePair("A_NAME", stg2);
wst.addNameValuePair("A_PWD1", stg3);
wst.addNameValuePair("A_JOIN", stg4);
wst.addNameValuePair("A_END", stg5);
wst.addNameValuePair("A_COURSE", stg6);
wst.addNameValuePair("A_FACID", stg7);
wst.addNameValuePair("A_SESSION", stg8);
wst.addNameValuePair("A_BATCH", stg9);
wst.addNameValuePair("A_BRANCH1", stg10);
wst.addNameValuePair("A_GENDER", stg11);
wst.execute(new String[] { SERVICE_URL });
}
@SuppressWarnings("deprecation")
public void no_net()
{
display( "No Network Connection");
final AlertDialog alertDialog = new AlertDialog.Builder(Staff.this).create();
alertDialog.setTitle("No Internet Connection");
alertDialog.setMessage("You don't have internet connection.\nElse please check the Internet Connection Settings.");
//alertDialog.setIcon(R.drawable.error_info);
alertDialog.setCancelable(false);
alertDialog.setButton("Close", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
alertDialog.cancel();
Staff.this.finish();
System.exit(0);
}
});
alertDialog.setButton2("Use Local DataBase", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
display( "Accessing local DataBase.....");
alertDialog.cancel();
}
});
alertDialog.show();
}
private class WebServiceTask extends AsyncTask<String, Integer, String> {
public static final int POST_TASK = 1;
private static final String TAG = "WebServiceTask";
// connection timeout, in milliseconds (waiting to connect)
private static final int CONN_TIMEOUT = 3000;
// socket timeout, in milliseconds (waiting for data)
private static final int SOCKET_TIMEOUT = 5000;
private int taskType = POST_TASK;
private Context mContext = null;
private String processMessage = "Processing...";
private ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
private ProgressDialog pDlg = null;
public WebServiceTask(int taskType, Context mContext, String processMessage) {
this.taskType = taskType;
this.mContext = mContext;
this.processMessage = processMessage;
}
public void addNameValuePair(String name, String value) {
params.add(new BasicNameValuePair(name, value));
}