在HTTP GET请求之后,结果字符串被截断 - 内容已被占用 [英] After HTTP GET request, the resulting string is cut-off - content has been consumed
问题描述
try {
HttpClient client = new DefaultHttpClient( );
String getURL =http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&Karten=true&DatumT=\"+day+\"& DatumM = +月+ &安培; DatumJ = +年+ &安培; ZeitH = +小时+ &安培; ZeitM = +分钟+ &安培; INTERVALL = 60安培;俗尘=(S)uchen&安培; GT0 =亚琛&安培; T 0 = H&安培; HT0 = + start_from + &安培; GT1 =亚琛&安培; T 0 = H&安培; HT1 = +目的地+;
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
HttpEntity resEntityGet = responseGet.getEntity();
if(resEntityGet!= null){
//对响应做
Log.i(GET RESPONSE,EntityUtils.toString(resEntityGet));
catch(...){
...
}
这一切都很好......唯一的问题是:Log.i的输出被截断......它不是完整的html页面。如果我在浏览器中发出相同的请求,我会得到3x的输出,与在仿真器中发出请求并使用上面的代码相反......出现了什么问题?
错误:
04-30 14:01:01.287:WARN / System.err(1088):java.lang.IllegalStateException :内容已被占用
04-30 14:01:01.297:WARN / System.err(1088):at org.apache.http.entity.BasicHttpEntity.getContent(BasicHttpEntity.java:84)
04-30 14:01:01.297:WARN / System.err(1088):at org.apache.http.conn.BasicManagedEntity.getContent(BasicManagedEntity.java:100)
04-30 14:01:01.307: WARN / System.err(1088):at org.apache.http.util.EntityUtils.toString(EntityUtils.java:112)
04-30 14:01:01.307:WARN / System.err(1088):在org.apache.http.util.EntityUtils.toString(EntityUtils.java:146)
04-30 14:01:01.307:WARN / System.err(1088):at mjb.project.AVV.ParseHTML。 start(ParseHTML.java:177)
04-30 14:01:01.307:WARN / System.err(1088):at mjb.project.AVV.Parse HTML.onCreate(ParseHTML.java:139)
04-30 14:01:01.307:WARN / System.err(1088):at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-30 14:01:01.327:WARN / System.err(1088):at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
04-30 14:01:01.327:WARN / System .err(1088):at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
04-30 14:01:01.327:WARN / System.err(1088):at android.app.ActivityThread。访问$ 2200(ActivityThread.java:119)
04-30 14:01:01.347:WARN / System.err(1088):at android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1863)
04-30 14:01:01.347:WARN / System.err(1088):at android.os.Handler.dispatchMessage(Handler.java:99)
04-30 14:01:01.347:WARN / System.err(1088):在android.os.Looper.loop(Looper.java:123)
04-30 14:01:01.347:WARN / System.err(1088):at android.app.ActivityThread .main(ActivityThread.java:4363)
04-30 14:01:0 1.347:WARN / System.err(1088):at java.lang.reflect.Method.invokeNative(Native Method)
04-30 14:01:01.357:WARN / System.err(1088):at java。 lang.reflect.Method.invoke(Method.java:521)
04-30 14:01:01.357:WARN / System.err(1088):at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:860)
04-30 14:01:01.357:WARN / System.err(1088):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
04-30 14:01:01.357:WARN / System.err(1088):at dalvik.system.NativeStart.main(Native Method)
好的,我解决了它。
据我所知,实体的内容如果没有被使用 。所以我用 Entity 的内容创建了一个新的 String 对象,所以说一个副本而不是对实体内容的引用。
try {
HttpClient client = new DefaultHttpClient();
String getURL =http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&DatumT=\"+day+\"&DatumM=\"+月+ &安培; DatumJ = +年+ &安培; ZeitH = +小时+ &安培; ZeitM = +分钟+ &安培; INTERVALL = 120安培;俗尘=(S)uchen&安培; GT0 =亚琛&安培; T 0 = H&安培; HT0 = + start_from + &安培; GT1 =亚琛&安培; T 0 = H&安培; HT1 = +目的地+ ;
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
HttpEntity resEntityGet = responseGet.getEntity();
String sourceString =;
if(resEntityGet!= null){
try {
dismissDialog();
sourceString = new String(EntityUtils.toString(resEntityGet));
Log.i(GET RESPONSE,sourceString);
} catch(ParseException exc){
// TODO自动生成的catch块
exc.printStackTrace();
} catch(IllegalStateException exc){
// TODO自动生成的catch块
exc.printStackTrace();
}
...
}
...
} catch(...){
...
}
I'm making a http get request like this:
try {
HttpClient client = new DefaultHttpClient();
String getURL = "http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&Karten=true&DatumT="+day+"&DatumM="+month+"&DatumJ="+year+"&ZeitH="+hour+"&ZeitM="+min+"&Intervall=60&Suchen=(S)uchen>0=Aachen&T0=H&HT0="+start_from+">1=Aachen&T0=H&HT1="+destination+"";
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
HttpEntity resEntityGet = responseGet.getEntity();
if (resEntityGet != null) {
//do something with the response
Log.i("GET RESPONSE",EntityUtils.toString(resEntityGet));
}
...
} catch (...) {
...
}
It all works well... the only problem: the output from Log.i is cut-off... It's not the complete html page. If I make the same request in a browser, I get 3x the output in opposition to making the request in the emulator and using the above code.... what's wrong?
ERROR:
04-30 14:01:01.287: WARN/System.err(1088): java.lang.IllegalStateException: Content has been consumed
04-30 14:01:01.297: WARN/System.err(1088): at org.apache.http.entity.BasicHttpEntity.getContent(BasicHttpEntity.java:84)
04-30 14:01:01.297: WARN/System.err(1088): at org.apache.http.conn.BasicManagedEntity.getContent(BasicManagedEntity.java:100)
04-30 14:01:01.307: WARN/System.err(1088): at org.apache.http.util.EntityUtils.toString(EntityUtils.java:112)
04-30 14:01:01.307: WARN/System.err(1088): at org.apache.http.util.EntityUtils.toString(EntityUtils.java:146)
04-30 14:01:01.307: WARN/System.err(1088): at mjb.project.AVV.ParseHTML.start(ParseHTML.java:177)
04-30 14:01:01.307: WARN/System.err(1088): at mjb.project.AVV.ParseHTML.onCreate(ParseHTML.java:139)
04-30 14:01:01.307: WARN/System.err(1088): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-30 14:01:01.327: WARN/System.err(1088): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
04-30 14:01:01.327: WARN/System.err(1088): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
04-30 14:01:01.327: WARN/System.err(1088): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
04-30 14:01:01.347: WARN/System.err(1088): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
04-30 14:01:01.347: WARN/System.err(1088): at android.os.Handler.dispatchMessage(Handler.java:99)
04-30 14:01:01.347: WARN/System.err(1088): at android.os.Looper.loop(Looper.java:123)
04-30 14:01:01.347: WARN/System.err(1088): at android.app.ActivityThread.main(ActivityThread.java:4363)
04-30 14:01:01.347: WARN/System.err(1088): at java.lang.reflect.Method.invokeNative(Native Method)
04-30 14:01:01.357: WARN/System.err(1088): at java.lang.reflect.Method.invoke(Method.java:521)
04-30 14:01:01.357: WARN/System.err(1088): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
04-30 14:01:01.357: WARN/System.err(1088): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
04-30 14:01:01.357: WARN/System.err(1088): at dalvik.system.NativeStart.main(Native Method)
OK I solved it.
As I understand, the content of the entity gets consumed if it's not "used". So I created a new String object with the content of the Entity, so to say a copy instead of a reference to the entity's content.
try {
HttpClient client = new DefaultHttpClient();
String getURL = "http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&DatumT="+day+"&DatumM="+month+"&DatumJ="+year+"&ZeitH="+hour+"&ZeitM="+min+"&Intervall=120&Suchen=(S)uchen>0=Aachen&T0=H&HT0="+start_from+">1=Aachen&T0=H&HT1="+destination+"";
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
HttpEntity resEntityGet = responseGet.getEntity();
String sourceString = "";
if (resEntityGet != null) {
try {
dismissDialog();
sourceString= new String(EntityUtils.toString(resEntityGet));
Log.i("GET RESPONSE", sourceString);
} catch (ParseException exc) {
// TODO Auto-generated catch block
exc.printStackTrace();
} catch (IllegalStateException exc) {
// TODO Auto-generated catch block
exc.printStackTrace();
}
...
}
...
} catch(...) {
...
}
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