SQL:SQL("JDBC3","select campus_id from campus_area where ${if(len(C2)=0,'1=2','campus_name like '%'+C2+'%'')}",1)
SQL("JDBC3","select campus_id from campus_area where "+if(len(C2)=0,'1=2'," campus_name like '%"+C2+"%'"),1,1)
错的点很多。。总之帮你改了
后面多加了一个1表示只取第一条,如果不需要,可以改回去
SQL("JDBC3","select campus_id from campus_area where " + if(len(C2)=0," 1=2"," campus_name like '%"+C2+"%')",1)