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📄 手机与servlet的网络通信技巧.htm

📁 随着越来越多手提电话和个人数字助理开始融入到信息高速公路之上
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                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>final static String defaultURL = 
                  "http://localhost:8080/examples/servlet/ServletApp";<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>public ClientApp(){<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>display = Display.getDisplay(this);<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>tf1 = new TextField("input first param:","</SPAN><SPAN 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN; mso-fareast-font-family: 'MS Sans Serif'">卢东方</SPAN><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'">",20,TextField.ANY);<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>tf2 = new TextField("input second param:","</SPAN><SPAN 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN; mso-fareast-font-family: 'MS Sans Serif'">王桃群</SPAN><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'">",20,TextField.ANY);<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>cmdSend = new Command("Send",Command.SCREEN,1);<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>cmdBack = new Command("Back",Command.SCREEN,1);<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>inputForm = new Form("pls input the param:");<O:P> 
                  </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>inputForm.append(tf1); inputForm.append(tf2); 
                  inputForm.addCommand(cmdSend);<SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN><O:P></O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>inputForm.setCommandListener(this);<SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN><O:P></O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>}<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>public void startApp() throws 
                  MIDletStateChangeException{<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>display.setCurrent(inputForm);<SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN><O:P></O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>}<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>public void invokeServlet(String url) throws 
                  IOException {<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>HttpConnection hc = null; DataOutputStream dos = null; 
                  DataInputStream dis = null;<O:P> </O:P></SPAN></P>
                  <P align=left class=MsoNormal 
                  style="TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 'MS Sans Serif'; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'MS Sans Serif'; mso-font-kerning: 0pt; mso-fareast-font-family: 'MS Sans Serif'"><SPAN 

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