又见thrift异常之TApplicationException: Internal error processing..
客户端调用获取商户提现产品手续费的接口，出现异常org.apache.thrift.TApplicationException: Internal error processing getMerchantFeeVO
接下来，分析服务端的日志：
如下info文件的日志：
可疑的是从db获取CP05产品信息时返回0行。
再看error日志文件，发现了NPE异常：
2019-03-04 09:59:17,660 ERROR [pool-4-thread-20] (ProcessFunction.java:47) - Internal error processing getMerchantFeeVO
java.lang.NullPointerException
at com.emaxcard.manage.common.cache.RedisUtil.isDistinguishBankCardType(RedisUtil.java:536) ~[manage_module-1.0-SNAPSHOT.jar:?]
at com.emaxcard.manage.common.cache.RedisUtil.getRate(RedisUtil.java:440) ~[manage_module-1.0-SNAPSHOT.jar:?]
at com.emaxcard.manage.common.cache.RedisUtil.merchantRedis(RedisUtil.java:150) ~[manage_module-1.0-SNAPSHOT.jar:?]
at com.emaxcard.manage.rpc.service.impl.MerchantRedisServiceImpl.getMerchantFeeVO(MerchantRedisServiceImpl.java:44) ~[manage_server.jar:?]
at com.emaxcard.manage.rpc.service.MerchantRedisService$Processor$getMerchantFeeVO.getResult(MerchantRedisService.java:719) ~[manage_thrift-1.0-SNAPSHOT.jar:?]
at com.emaxcard.manage.rpc.service.MerchantRedisService$Processor$getMerchantFeeVO.getResult(MerchantRedisService.java:699) ~[manage_thrift-1.0-SNAPSHOT.jar:?]
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38) [libthrift-0.11.0.jar:0.11.0]
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) [libthrift-0.11.0.jar:0.11.0]
at org.apache.thrift.TMultiplexedProcessor.process(TMultiplexedProcessor.java:134) [libthrift-0.11.0.jar:0.11.0]
at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:518) [libthrift-0.11.0.jar:0.11.0]
at org.apache.thrift.server.Invocation.run(Invocation.java:18) [libthrift-0.11.0.jar:0.11.0]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_181]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
如下是堆栈里的isDistinguishBankCardType方法代码，可以看出，product对象是null，后文引用它的属性时，自然出现了NPE。
public boolean isDistinguishBankCardType(String productCode) {
//根据产品code获取产品
Product product = productDao.selectByCodeEnable(productCode);
if ("DPTPAY".equals(product.getTrxType())) {
return false;
} else if ("PAYMNT".equals(product.getTrxType())) {
if (product.getName().indexOf(com.emaxcard.manage.common.utils.Constants.QUICKPAY2) >= 0 ||
product.getName().indexOf(com.emaxcard.manage.common.utils.Constants.B2B) >= 0 ||
product.getName().indexOf(com.emaxcard.manage.common.utils.Constants.QUAGRP) >= 0) {
return false;
}
}
return true;
}
也就是说，服务端程序处理出现未经捕获的Runtime异常，自然，客户端调用这个RPC接口就抛出了Internal error processing**
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