public void onMessage(String msg) {
System.out.printf("Got msg: %s%n", msg);
if(msg.charAt(0)=='a'){
JsonParserFactory factory=JsonParserFactory.getInstance();
JSONParser parser=factory.newJsonParser();
//Map jsonMap=parser.parseJson(msg); uncommenting this line will give the Exception
}
}
这是代码，当我取消注释注释行时，我得到了这个异常
2014-08-28 15:26:17.518:WARN:o.WebSocketConnection:WebSocketClient@497985732-26: Unhandled Error (closing connection)
java.io.IOException: Cannot append to finished buffer
at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.appendFrame(SimpleTextMessage.java:47)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:60)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextFrame(JettyAnnotatedEventDriver.java:201)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:160)
at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:302)
at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:613)
at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:468)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
Connection closed: 1008 - IOException
2014-08-28 15:26:17.502:WARN:o.WebSocketConnection:WebSocketClient@497982731-29: Unhandled Error (closing connection)
org.eclipse.jetty.websocket.api.WebSocketException: Cannot call method public void oooo.WebSocketConnection#onMessage(java.lang.String) with args: [java.lang.String]
at org.eclipse.jetty.websocket.common.events.annotated.CallableMethod.call(CallableMethod.java:99)
at org.eclipse.jetty.websocket.common.events.annotated.OptionalSessionCallableMethod.call(OptionalSessionCallableMethod.java:72)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextMessage(JettyAnnotatedEventDriver.java:209)
at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:64)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextFrame(JettyAnnotatedEventDriver.java:201)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:160)
at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:302)
at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
Caused by:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jetty.websocket.common.events.annotated.CallableMethod.call(CallableMethod.java:71)
at org.eclipse.jetty.websocket.common.events.annotated.OptionalSessionCallableMethod.call(OptionalSessionCallableMethod.java:72)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextMessage(JettyAnnotatedEventDriver.java:209)
at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:64)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextFrame(JettyAnnotatedEventDriver.java:201)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:160)
at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:302)
at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
Caused by:
com.json.exceptions.JSONParsingException: @Key-Heirarchy::?@Key::a?= is expected...but found [@Position::1
at com.json.utils.JSONUtility.handleFailure(JSONUtility.java:124)
at com.json.parsers.JSONParser.consumeKeyOrName(JSONParser.java:933)
at com.json.parsers.JSONParser.parseJsonBlock(JSONParser.java:208)
at com.json.parsers.JSONParser.parseJson(JSONParser.java:139)
at oooo.WebSocketConnection.onMessage(WebSocketConnection.java:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jetty.websocket.common.events.annotated.CallableMethod.call(CallableMethod.java:71)
at org.eclipse.jetty.websocket.common.events.annotated.OptionalSessionCallableMethod.call(OptionalSessionCallableMethod.java:72)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextMessage(JettyAnnotatedEventDriver.java:209)
at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:64)
at org.eclipse.jetty.websocket.common.events.JettyAnnotatedEventDriver.onTextFrame(JettyAnnotatedEventDriver.java:201)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:160)
at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:302)
at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
2014-08-28 15:26:17.627:WARN:oejwc.Parser:WebSocketClient@497982732-23:
org.eclipse.jetty.websocket.api.WebSocketException: java.lang.NullPointerException
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:280)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
Caused by:
java.lang.NullPointerException
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:259)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
2014-08-28 15:26:17.627:WARN:oejut.QueuedThreadPool:WebSocketClient@497982732-23:
org.eclipse.jetty.websocket.api.WebSocketException: java.lang.NullPointerException
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:280)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
Caused by:
java.lang.NullPointerException
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:259)
at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.onOpen(WebSocketClientConnection.java:92)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.upgradeConnection(UpgradeConnection.java:269)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.read(UpgradeConnection.java:207)
at org.eclipse.jetty.websocket.client.io.UpgradeConnection.onFillable(UpgradeConnection.java:150)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535)
at java.lang.Thread.run(Unknown Source)
我不知道造成这种情况的原因是什么，我正在使用jetty websocket和quick-json，我也尝试过GSON并在解析时遇到了同样的异常。 谢谢你的帮助。