</p> <pre><code>private void serve(HttpServletRequest req, HttpServletResponse resp) { String bundle = req.getParameter("bundle"); </code></pre> <p>我不：「拋出：IllegalArgumentException：UTF8」上

Question

我今天做了小改動，以我的應用程序大多數請求碼頭錯誤，和我們所有的請求的突然90％是在這一行引發錯誤不知道該怎麼做 - 這個異常在Jetty的查詢請求解析器中很深。請求沒有什麼不尋常之處，我不認爲有任何非UTF8字符，除非它們不可打印或者其他。

/sync 
java.lang.IllegalArgumentException: !utf8 
    at org.mortbay.util.Utf8StringBuffer.append(Utf8StringBuffer.java:121) 
    at org.mortbay.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:458) 
    at org.mortbay.util.UrlEncoded.decodeTo(UrlEncoded.java:503) 
    at org.mortbay.jetty.Request.extractParameters(Request.java:1565) 
    at org.mortbay.jetty.Request.getParameter(Request.java:858) 
    at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:158) 
    at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:158) 
    at com.keithlea.whamserver.sync.ServerSyncServlet.serve(ServerSyncServlet.java:169) 
    at com.keithlea.whamserver.sync.ServerSyncServlet.doGet(ServerSyncServlet.java:77) 
    at com.keithlea.whamserver.sync.ServerSyncServlet.doPost(ServerSyncServlet.java:67) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:278) 
    at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:268) 
    at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:180) 
    at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:93) 
    at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120) 
    at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:134) 
    at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:131) 
    at com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:208) 
    at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:131) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.googlecode.objectify.cache.AsyncCacheFilter.doFilter(AsyncCacheFilter.java:59) 
    at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:49) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.keithlea.whamserver.EditorDomainFilter.doFilter(EditorDomainFilter.java:90) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:254) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146) 
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:527) 
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437) 
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444) 
    at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:220) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300) 
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441) 
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251) 
    at java.lang.Thread.run(Thread.java:745) 

Answer 1

我解決了這個要歸功於JoakimErdfelt。問題是這是一個POST請求，並且HttpServletRequest試圖將輸入數據解析爲查詢字符串。我可以通過首先將查詢字符串讀入緩衝區來防止這種情況。這裏的新代碼：

private void serve(HttpServletRequest req, HttpServletResponse resp) { 
    UserInput input = readUserInput(req.getInputStream()); 
    String bundle = req.getParameter("bundle"); 

這似乎已完全解決了問題。