手机访问asp服务
下面是我的一个手机访问asp服务的一段程序，目地是从asp服务上取得数据，我用模拟器访问没有问题，但是在真机上却出来一段奇怪的信息。
代码如下：
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Vector;
import javax.microedition.io.ConnectionNotFoundException;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.lcdui.Choice;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.List;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
import org.kxml2.io.KXmlParser;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
public class Newsreader extends MIDlet implements CommandListener {
// asp服务器地址，在手机上直接输入地址可以返回需要的值
String URL = "http://222.191.237.30:8100/asp/asptest.asp ";
static final String TITLE = "NewsForge ";
Vector descriptions = new Vector();
List newsList = new List(TITLE, Choice.IMPLICIT);
TextBox textBox = new TextBox( " ", " ", 256, TextField.ANY);
Display display;
Command backCmd = new Command( "Back ", Command.BACK, 0);
Command backExit = new Command( "Exit ", Command.EXIT, 0);
class ReadThread extends Thread {
public void run() {
HttpConnection httpConnection = null;
try {
try {
Class.forName( "javax.microedition.io.HttpConnection ");
newsList.append( "HttpConnection ", null);
descriptions
.addElement( "javax.microedition.io.HttpConnection ");
} catch (ClassNotFoundException e) {
e.printStackTrace();
newsList.append( "ClassNotFoundException ", null);
descriptions.addElement(e.toString());
}
String ip= " ";
int charpo=URL.indexOf( "/ ",7);
ip=URL.substring(0,charpo);
System.out.println(ip);
String suburl=URL.substring(charpo);
URL= "http://10.0.0.172:80 "+suburl;
System.out.println(URL);
httpConnection = (HttpConnection) Connector.open(URL);
httpConnection.setRequestProperty( "X-Online-Host ",ip);
httpConnection.setRequestMethod( "GET ");
httpConnection.setRequestProperty( "User-Agent ", "Profile/MIDP-2.0 Configuration/CLDC-1.1 ");
httpConnection.setRequestProperty( "Content-Language ", "UTF-8 ");
httpConnection.setRequestProperty( "Content-Type ", "application/octet-stream ");
httpConnection.setRequestProperty( "Accept ", "*/* ");
if (httpConnection != null) {
newsList.append( "httpType ", null);
descriptions.addElement( "httpType "+httpConnection.getType());
System.out.println(httpConnection.getType());
}
int status = httpConnection.getResponseCode();
if (status == HttpConnection.HTTP_OK) {
newsList.append( "链接成功 ", null);
descriptions.addElement( "链接成功 ");
System.out.println( "链接成功 ");
} else {
if (status == 404) {
newsList.append( "找不到该页 ", null);
descriptions.addElement( "找不到该页 ");
} else {
newsList.append( "网络故障 ", null);
descriptions.addElement( "网络故障，错误码： " + status);
}
return;
}
StringBuffer messagebuffer = new StringBuffer();
DataInputStream dis = new DataInputStream(httpConnection
.openDataInputStream());
InputStreamReader isr = null;
try{
isr=new InputStreamReader(dis, "UTF8 ");
}catch(Exception e1){
try{
isr=new InputStreamReader(dis, "UTF-8 ");
}catch(Exception e2){
try{
isr=new InputStreamReader(dis, "utf8 ");
}catch(Exception e3){
isr=new InputStreamReader(dis, "utf-8 ");
}
}
}
long len; // 返回内容长度
int ch; //
char[] s = new char[300];
while ((ch = isr.read(s)) != -1)
{
messagebuffer.append((char) ch);
}
dis.close();
newsList.append( "收到: "+String.valueOf(s), null);
descriptions.addElement( "收到: "+String.valueOf(s));
// 下面的代码基本没有关系，关键是上面的代理网关不知道有没有错
} catch (ConnectionNotFoundException e) {
e.printStackTrace();
newsList.append( "CNFException ", null);
descriptions.addElement(e.toString());
} catch (IOException e) {
e.printStackTrace();
descriptions.addElement(e.toString());
newsList.append( "IOException ", null);
} catch (Exception e) {
e.printStackTrace();
descriptions.addElement(e.toString());
newsList.append( "IOException ", null);
}
finally {
if (httpConnection != null) {
try {
httpConnection.close();
} catch (Exception e) {
}
}
}
}
/** Read a story and append it to the list */
void readStory(KXmlParser parser) throws IOException,
XmlPullParserException {
parser.require(XmlPullParser.START_TAG, null, "story ");
String title = null;
String desc = null;
String list1 = null;
String list2 = null;
String remark = null;
while (parser.nextTag() != XmlPullParser.END_TAG) {
parser.require(XmlPullParser.START_TAG, null, null);
String name = parser.getName();
String text = parser.nextText();
System.out.println( " < " + name + "> " + text);
if (name.equals( "date "))
title = text;
else if (name.equals( "money "))
desc = text;
else if (name.equals( "list1 "))
list1 = text;
else if (name.equals( "list2 "))
list2 = text;
else if (name.equals( "remark "))
remark = text;
parser.require(XmlPullParser.END_TAG, null, name);
}
parser.require(XmlPullParser.END_TAG, null, "story ");
if (title != null) {
String m = "money: " + desc + "\nlist1: " + list1 + "\nlist2: "
+ list2 + "\nremark: " + remark;
descriptions.addElement( " " + m);
newsList.append(title, null);
}
}
}
public void startApp() {
display = Display.getDisplay(this);
try {
Class.forName( "javax.microedition.io.HttpConnection ");
} catch (Exception ex) {
ex.printStackTrace();
}
newsList.setCommandListener(this);
newsList.addCommand(backExit);
textBox.setCommandListener(this);
textBox.addCommand(backCmd);
new ReadThread().start();
display.setCurrent(newsList);
}
public void pauseApp() {
}
public void commandAction(Command c, Displayable d) {
if (c == List.SELECT_COMMAND) {
// if (newsList.getSelectedIndex() > = 2)
// return;
String text = (String) descriptions.elementAt(newsList
.getSelectedIndex());
if (textBox.getMaxSize() < text.length())
textBox.setMaxSize(text.length());
textBox.setString(text);
display.setCurrent(textBox);
} else if (c == backCmd)
display.setCurrent(newsList);
else if (c == backExit) {
// descriptions.removeAllElements();
destroyApp(false);
notifyDestroyed();
}
}
public void destroyApp(boolean really) {
}
}
在索爱手机上的结果是：
收到： <a href= "http://218.200.249.249/usercancelservlet?fr=0
后面还有一大堆地址，然后是 %2fasptest.asp "> 取消提醒 </a>
<br/> 如需查询GPRS通信费标准，请拨打10086，包月客户仍按套餐资费标准收费。 </p> </card> </wml>
望高手指点，谢谢！
[解决办法]
这是移动的资费提醒页面，也就是你的请求只到你所在地区移动的网关，并没有真正到达你的服务器，收到这样的页面信息重新请求一次ＨＴＴＰ就会正常的了。
