带有多个请求值的无法解决的错误发送到plc（apache.plc4x）

问题描述 投票：4回答：1

我是新来的，我的第一个问题是关于使用Apache PLC4x的PLC值的请求。我想遍历PLC中所有可用的实际I，Q和DB。因为我不想做到这一点，所以我遍历了一组数据库，但是如果无法访问该数据库，它只会打印出“错误处理消息”。

是否可以遍历所有实体？

通过尝试和错误，我找到了一些可访问的数据库，但无法遍历所有可用数据。

谢谢！

for (int m = 1; m < 10; m++) {

 for (int j = 1; j < 9; j++) {

  readBuilder.addItem("value_int " + m + "." + j, "%DB" + m + "." + "DB" + j + ":INT");

 }

}

错误消息：

[nioEventLoopGroup-2-1] ERROR org.apache.plc4x.java.s7.netty.S7Protocol - Error processing message
java.lang.IndexOutOfBoundsException: Index: 107, Size: 107
at java.util.LinkedList.checkElementIndex(Unknown Source)
at java.util.LinkedList.get(Unknown Source)
at org.apache.plc4x.java.s7.netty.strategies.DefaultS7MessageProcessor.getMergedResponseMessage(DefaultS7MessageProcessor.java:418)
at org.apache.plc4x.java.s7.netty.strategies.DefaultS7MessageProcessor.processResponse(DefaultS7MessageProcessor.java:346)
at org.apache.plc4x.java.s7.netty.S7Protocol.decode(S7Protocol.java:483)
at org.apache.plc4x.java.s7.netty.S7Protocol$1.decode(S7Protocol.java:86)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
at org.apache.plc4x.java.s7.netty.S7Protocol.channelRead(S7Protocol.java:416)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284)
at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:682)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:617)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:534)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Unknown Source)
[nioEventLoopGroup-2-1] WARN io.netty.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.IndexOutOfBoundsException: Index: 107, Size: 107
at java.util.LinkedList.checkElementIndex(Unknown Source)
at java.util.LinkedList.get(Unknown Source)
at org.apache.plc4x.java.s7.netty.strategies.DefaultS7MessageProcessor.`getMergedResponseMessage`(DefaultS7MessageProcessor.java:418)
at org.apache.plc4x.java.s7.netty.strategies.DefaultS7MessageProcessor.processResponse(DefaultS7MessageProcessor.java:346)
at org.apache.plc4x.java.s7.netty.S7Protocol.decode(S7Protocol.java:483)
at org.apache.plc4x.java.s7.netty.S7Protocol$1.decode(S7Protocol.java:86)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
at org.apache.plc4x.java.s7.netty.S7Protocol.channelRead(S7Protocol.java:416)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284)
at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:682)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:617)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:534)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Unknown Source)

'''

java apache plc plc4x apache-plc4x
1个回答
0
投票

很抱歉没有尽快回复...我只是忘了。目前，我们还没有明显的StackOverflow，但我们会尽力加以改善。

我们已经找到问题并解决。还发布了新版本的Apache PLC4X来解决此问题（版本0.5.0）。请尝试使用此版本。

参考我们为您的问题https://issues.apache.org/jira/browse/PLC4X-144创建的错误报告

希望这会有所帮助。

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