How the two layers of loop optimization, preserved the 500 data, with 40 seconds, bosses help

 
Public String saveRoleGwType () {
RoleId=StringUtils. NVL (roleId); 
GwType=StringUtils. NVL (gwType); 
Data=https://bbs.csdn.net/topics/StringUtils.nvl (data); 
Map Maps=(Map) JSON. Parse (data); 
NkSysUsers user=super. GetCurrentUser (); 
Date date=new Date(); 
List RoleGwTypePowerList=new ArrayList (a); 
The Date time2=new Date (); 
System. The out. Println (" to start the cycle time: "+ time2); 

For (String gwType: Arrays. AsList (gwType. The split () ", ")) {
RoleGwTypePowerService. DeletePowerByRoleIdAndGwTypeAndSearchType (roleId, gwType); 
For (Map. Entry M: maps. EntrySet ()) {
If (m.g etKey (.) the equals (" TextFileES ") | | m.g etKey (.) the equals (" TextFileSQL ") | | 
TextNotFileES m.g etKey (.) the equals (" ") | | m.g etKey (.) the equals (" TextNotFileSQL ")) {
continue; 
} 
RoleGwTypePower RGTP=new RoleGwTypePower (); 
RGTP. SetRoleId (roleId); 
RGTP. SetGwType (gwType); 
RGTP. SetSearchType (m.g etKey ()); 
RGTP. SetSearchRightLevel (String. The valueOf (m.g etValue ())); 
RGTP. SetCustomRight (String. The valueOf (maps) get (" Text "+ m.g etKey ()))); 
RGTP. SetCreateUId (user. GetId ()); 
RGTP. SetCreateUName (user. GetUserName ()); 
RGTP. SetCreateTime (date); 
RGTP. SetStatus (" 1 "); 
RoleGwTypePowerList. Add (RGTP); 
} 
} 

The Date time3=new Date (); 
System. The out. Println (" the end of the cycle time: "+ time3); 
Try {
RoleGwTypePowerService. UpdateDataRoleGwTypePowerList (roleGwTypePowerList); 
The Date time4=new Date (); 
System. The out. Println (" return to the front of time: "+ time4); 
Return the outPut (" ok "); 
} the catch (Exception e) {
Return the outPut (" error "); 
} 

}