HttpServlet：未调用 doPut

发布于 2024-11-13 09:58:32 字数 677 浏览 6 评论 0原文

我有一个 Tomcat 应用程序服务器和这个 Java 源代码：

public class MyServlet extends HttpServlet {
    public MyServlet() {}

    protected void doPut(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        // ... PUT code
    }

    protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        // ... GET code
    }
}

使用 GET 一切都很好。调用方法doGet。但是从我的 iPhone 应用程序执行 put 时，没有调用 doPut 方法。服务器上没有任何反应，我在日志文件中看不到任何内容。那么出了什么问题呢？ Tomcat 有 PUT 限制吗？我该如何调试这个？在 iOS 设备上，我使用一个库，我可以告诉它应该使用 PUT，所以它应该可以工作，因为它是一个非常常见的框架。

有人有想法吗？

最好的问候蒂姆。

原文

I have a Tomcat application server and this Java source code:

public class MyServlet extends HttpServlet {
    public MyServlet() {}

    protected void doPut(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        // ... PUT code
    }

    protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        // ... GET code
    }
}

With GET everything is fine. The method doGet is called. But from my iPhone app doing a put the doPut method is not called. Nothing happens on the server, I see nothing in the log files. So what´s wrong? Are there any PUT limitations on Tomcat?
How can I debug this? On the iOS device I use a library which I can tell that PUT shall be used, so it should work, because it is a very common framework.

Does anyone have an idea?

Best Regards Tim.

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人海汹涌 2024-11-20 09:58:32

使用 wireshark 跟踪数据包以确保您确实收到 PUT 请求。

或者类似地为tomcat设置单独的访问日志（已经在默认配置文件中，但我相信被注释掉了）看看会发生什么。

如果您在您最喜欢的文本编辑器中打开 tomcat 目录中的文件 conf/server.xml 那么您会在接近尾声时发现：

    <!-- Access log processes all example.
         Documentation at: /docs/config/valve.html -->
    <!--
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"  
           prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
    -->

如果删除评论标记，所有访问都将记录到 logs/localhost_access_log 中。

例如：

    <!-- Access log processes all example.
         Documentation at: /docs/config/valve.html -->
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"  
           prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>

Use wireshark to trace the packets to make sure you actually get a PUT request.

Or similarly setup a separate access log for tomcat (it is already in the default config file, but commented out I believe) to see what is coming in.

If you open in your favorit texteditor the file conf/server.xml in the tomcat directory then you'll find near the end :

    <!-- Access log processes all example.
         Documentation at: /docs/config/valve.html -->
    <!--
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"  
           prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
    -->

if you remove the comment tokens all access will be logged to logs/localhost_access_log.

e.g. :

    <!-- Access log processes all example.
         Documentation at: /docs/config/valve.html -->
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"  
           prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>

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