org.apache.catalina.core.standardwrappervalve invoke

org.apache.catalina.core.standardWrapperValve.invoke 是一个在 Apache Tomcat 中使用的类，它负责将请求转发到对应的 Servlet 处理。它可以在 Tomcat 的配置文件中进行配置，来控制请求的处理流程。

相关问题

servlet[BookCasdeUpdateServlet]的Servlet.service()引发异常 java.lang.NumberFormatException: For input string: "3}" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at servlet.BookCasdeUpdateServlet.doGet(BookCasdeUpdateServlet.java:53) at servlet.BookCasdeUpdateServlet.doPost(BookCasdeUpdateServlet.java:80) at javax.servlet.http.HttpServlet.service(HttpServlet.java:528) at javax.servlet.http.HttpServlet.service(HttpServlet.java:596) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:673) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)报错信息

根据报错信息可以看出，错误是由于在 `BookCasdeUpdateServlet` 的第 53 行代码进行了一个整数转换，但是这个转换失败了，因为输入的字符串 "3}" 不是一个有效的数字。具体来说，这个错误是由于调用了 `Integer.parseInt()` 方法时传入了一个无法解析为整数的字符串导致的。

解决这个问题的方法是检查你的代码，在第 53 行附近找到这个字符串 "3}"，并且确定它的来源。你可以在这个字符串前面添加一些调试语句，输出一些变量的值，以帮助你找到问题所在。

另外，你可能还需要检查你的代码，确保你对输入的字符串进行了正确的清理和验证，以避免类似的问题。例如，你可以使用正则表达式去掉输入字符串中的非数字字符。

严重: 在路径为[/JavawebFoodMarker]的上下文中，servlet[servelet.hMessageUpdateServelet]的Servlet.service()引发异常 java.lang.NumberFormatException: For input string: " 23 " at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:68) at java.base/java.lang.Integer.parseInt(Integer.java:638) at java.base/java.lang.Integer.parseInt(Integer.java:770) at servelet.hMessageUpdateServelet.doGet(hMessageUpdateServelet.java:44) at servelet.hMessageUpdateServelet.doPost(hMessageUpdateServelet.java:90) at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:232) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:167) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:194) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:167) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:544) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1651) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:832)

这个异常是因为在调用 `Integer.parseInt()` 方法时，传入了一个非数字字符串。具体来说，是在 `servelet.hMessageUpdateServelet.doGet(hMessageUpdateServelet.java:44)` 这个方法中，第44行代码传入了一个值为 " 23 " 的字符串，这个字符串包含了一个或多个空格，导致无法转换为整数。你需要检查这个方法中的代码，找到这个传入 `Integer.parseInt()` 方法的字符串，并确保它只包含数字字符。