JSP简单的OA系统_非常不错的一个系统

				package swing;
				
				import com.bwm.string.Str;
				
				
				public class Rsserach{
						
					private String user1;
					private String user2;
					private String user3;
					private String user4;
					
					public String toSQL(String user1,String user2,String user3,String user4){
						
						Str str=new Str();
						
						this.user1=user1;
						this.user2=user2;
						this.user3=str.toChinese(user3);
						this.user4=str.toChinese(user4);
						
						if(user3.equals("")&&user4.equals("")){
							return new String("select * from jobwork where Name='"+user1+"' and Sign='"+user2+"'");
						}
						else if((!user3.equals("")&&user4.equals(""))){
					    	return new String("select * from jobwork where Name='"+user1+"'and  Sign='"+user2+"' and DateTime='"+user3+"'");
						}
						else if((user3.equals("")&&!user4.equals(""))){
					    	return new String("select * from jobwork where Name='"+user1+"'and  Sign='"+user2+"' and Plcontent='"+user4+"'");
						}
						else if((!user3.equals("")&&!user4.equals(""))){
					    	return new String("select * from jobwork where Name='"+user1+"'and  Sign='"+user2+"' and DateTime='"+user3+"' and  Plcontent='"+user4+"'");
						}
						return new String("select * from jobwork where Name='administrator'");
					}
				}