Android通过访问网页查看网页源码实例详解

2024-02-21 14:16:03 123

/** *获取网页HTML源代码 *@parampath网页路径 */ publicstaticStringgetHtml(Stringpath)throwsException{ URLurl=newURL(path); HttpURLConnectionconn=(HttpURLConnection)url.openConnection(); conn.setConnectTimeout(5000); conn.setRequestMethod("GET"); if(conn.getResponseCode()==200){ InputStreaminStream=conn.getInputStream(); byte[]data=read(inStream); Stringhtml=newString(data,"UTF-8"); returnhtml; } returnnull; } /** *读取流中的数据 */ publicstaticbyte[]read(InputStreaminputStream)throwsIOException{ ByteArrayOutputStreamoutputStream=newByteArrayOutputStream(); byte[]b=newbyte[1024]; intlen=0; while((len=inputStream.read(b))!=-1){ outputStream.write(b); } inputStream.close(); returnoutputStream.toByteArray(); }

publicclassHtmlViewActivityextendsActivity{ privateEditTextpathText; privateTextViewcodeView; @Override publicvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); pathText=(EditText)findViewById(R.id.pagepath);//网页路径 codeView=(TextView)findViewById(R.id.codeView);//显示获得的源码 Buttonbutton=(Button)findViewById(R.id.button);//查看按钮 button.setOnClickListener(newButtonClickListener());//按钮事件 } /** *查看按钮处理事件 */ privatefinalclassButtonClickListenerimplementsView.OnClickListener{ @Override publicvoidonClick(Viewv){ Stringpath=pathText.getText().toString(); try{ Stringhtml=PageService.getHtml(path); codeView.setText(html); }catch(Exceptione){ e.printStackTrace(); Toast.makeText(getApplicationContext(),R.string.error,1); } } } }

Android通过访问网页查看网页源码实例详解

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