android获取互联网图片与源代码.doc

android获取互联网图片与源代码网络编 android网络编程,是我们学习网络开发的重要课程，在此小弟今天学习了一下，从互联网上获取图片与门户网的源代码。大家肯定很急了吧，先让我们看一下效果先，大家还是很感兴趣的。如图：我的宝马牛吧，虚拟的，真的就好了。让我们看一下原代码是如何写。这可是我的原创哦.activity; importandroid.app.Activity; importandroid.content.Intent; importandroid.graphics.Bitmap; importandroid.graphics.BitmapFactory; importandroid.os.Bundle; importandroid.util.Log; importandroid.view.View; importandroid.widget.Button; importandroid.widget.EditText; importandroid.widget.ImageView; importandroid.widget.Toast; .utils.NetTool; publicclassDataActivityextendsActivity privateEditTextimagePathText; privatestaticfinalStringTAG=DataActivity; privateImageViewimageView; OverridepublicvoidonCreate(BundlesavedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.main); imagePathText=(EditText)findViewById(R.id.imagepath); imageView=(ImageView)findViewById(R.id.imageView); /获取我的宝马车图片 Buttonbutton=(Button)findViewById(R.id.button); button.setOnClickListener(newView.OnClickListener() OverridepublicvoidonClick(Viewv) Stringpath=imagePathText.getText().toString(); try bytedata=NetTool.getImage(path); Bitmapbm=BitmapFactory.decodeByteArray(data,0,data.length); /获取图片imageView.setImageBitmap(bm); catch(Exceptione) Log.i(TAG,e.toString(); Toast.makeText(DataActivity.this,获得图片失败,1).show(); ); /获取网页源代码 ButtonsinaButton=(Button)findViewById(R.id.sinaButton); sinaButton.setOnClickListener(newView.OnClickListener() OverridepublicvoidonClick(Viewv) Intentintent=newIntent(DataActivity.this,SinaActivity.class); startActivity(intent); ); 网页类.activity; .utils.NetTool; importandroid.app.Activity; importandroid.os.Bundle; importandroid.util.Log; importandroid.widget.EditText; importandroid.widget.ImageView; importandroid.widget.TextView; importandroid.widget.Toast; publicclassSinaActivityextendsActivity privateTextViewtextView; privatestaticfinalStringTAG=SinaActivity; /获取网页源代码 publicvoidonCreate(BundlesavedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.sina); textView=(TextView)this.findViewById(R.id.sina); try Stringhtml=NetTool.getHtml(,GBK); textView.setText(html); catch(Exceptione) Log.i(TAG,e.toString(); Toast.makeText(SinaActivity.this,获得网页失败,1).show(); 方法实现类NetT.utils; importjava.io.ByteArrayOutputStream; importjava.io.File; importjava.io.FileOutputStream; importjava.io.InputStream; .HttpURLConnection; .URL; publicclassNetTool /* *获得url代码数据 */ publicstaticStringgetHtml(Stringpath,Stringencoding)throwsException URLurl=newURL(path); HttpURLConnectionconn=(HttpURLConnection)url.openConnection(); conn.setRequestMethod(GET); conn.setConnectTimeout(6*1000); /别超过10秒。 System.out.println(conn.getResponseCode(); if(conn.getResponseCode()=200) InputStreaminputStream=conn.getInputStream(); bytedata=readStream(inputStream); returnnewString(data,encoding); returnnull; /* *获取指定路径，的数据。 * */publicstaticbytegetImage(Stringurlpath)throwsException URLurl=newURL(urlpath); HttpURLConnectionconn=(HttpURLConnection)url.openConnection(); conn.setRequestMethod(GET); conn.setConnectTimeout(6*1000); /别超过10秒。 if(conn.getResponseCode()=200) InputStreaminputStream=conn.getInputStream(); returnreadStream(inputStream); returnnull; /* *读取数据 *输入流 * */publicstaticbytereadStream(InputStreaminStream)throwsException ByteArrayOutputStreamoutstream=newByteArrayOutputS