android software can be connected in the simulator, the server can not connect the phone

I use struts2 + json + android,

 HttpResponse response = httpclient.execute (post); 

In this machine simulator time, it can connect to the back-office services, But we would not run on the phone.
Find some relevant information in the activity also added

 StrictMode.setThreadPolicy (new StrictMode.ThreadPolicy.Builder () 
. DetectDiskReads () 
. DetectDiskWrites () 
. DetectNetwork () / / or. DetectAll () for all detectable problems 
. PenaltyLog () 
. Build ()); 
StrictMode.setVmPolicy (new StrictMode.VmPolicy.Builder () 
. DetectLeakedSqlLiteObjects () 
. PenaltyLog () 
. PenaltyDeath () 
. Build ()); 

Still can not connect, for help!

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Reply:
Great God, do you solve this problem, the server's ip how to set, I also tangled ah.