TROUBLESHOOTING: Servelet Exception during PPR, #1...#n
1,现象:运行时错误,后台出现空指针异常;代码没有任何编译错误,operationbinding返回的result是null。前台出现PPR错误,编号从1开始增加:ServeletExceptionduringPPR,#1
ServeletExceptionduringPPR,#2
ServeletExceptionduringPPR,#3
...
ServeletExceptiondur