小编Hit*_*ker的帖子

我正在使用Eclipse IDE并正在编写一个servlet.servlet应该接受来自html文件的值并相应地返回JSON响应.

我的doPost()是:

protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

        try
        {
        res.setContentType("application/json");
        res.setHeader("Cache-Control", "nocache");
            res.setCharacterEncoding("utf-8");

        PrintWriter out = res.getWriter();

        JSONObject json = new JSONObject();

        String un=req.getParameter("uname");
        String pw=req.getParameter("password");

        if(un.equals("xxx") && pw.equals("xxx"))            
            json.put("result", "success");
        else
            json.put("result", "fail");

        out.print(json.toString());
        }
        catch(Exception e){System.out.print( e.getMessage());}  
    }

当我在Eclipse中运行这个servlet时,我得到一个文件下载对话框.

当使用Tomcat在Eclipse外部运行时,我收到错误:

root cause

java.lang.NoClassDefFoundError: org/json/JSONObject
    Server1.doPost(Server1.java:25)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

root cause

java.lang.ClassNotFoundException: org.json.JSONObject
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
    Server1.doPost(Server1.java:25)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

Server1.doPost(Server1.java:25)行引用

JSONObject json = new JSONObject();

我已将org.json.jar添加到构建路径中,并将其添加到部署路径中 Properties->Configure build path->Deployment assembly

我想在 WAS8.5.5.2 中部署一个应用程序。我用结构做了耳朵：

serverEar.ear
-- serverWar.war
---- WEB-INF
---- 'web' 目录内容

我有application.xml ：

 <application version="6" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd" >
    <module>
        <web>
            <web-uri> serverWar.war</web-uri>
            <context-root>serverWar</context-root>
        </web>
    </module>

    <library-directory> web/lib</library-directory>

</application>

网页.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <servlet>
        <servlet-name>p1</servlet-name>
        <servlet-class>com.test.Server</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>p1</servlet-name>
        <url-pattern>/server</url-pattern>
    </servlet-mapping>

    <security-constraint>
        <display-name/>
        <web-resource-collection>
            <web-resource-name/>
            <description/>
            <url-pattern>/*</url-pattern>
            <http-method>POST</http-method>
            <http-method>GET</http-method>
        </web-resource-collection>
        <user-data-constraint>
            <description/>
            <transport-guarantee>CONFIDENTIAL</transport-guarantee>
        </user-data-constraint>
    </security-constraint>

</web-app>

我有目录结构：

我已经从 WAS ibm/console 安装了该应用程序。安装目录就是..\Desktop\Test\out\artifacts\serverEar我的ear文件所在的地方（不知道安装目录会不会影响这个？）。

应用程序已成功安装并启动。

我已经尝试过网址：https://my_server:9443/serverWar/server，它给了我：Error 404: java.io.FileNotFoundException: SRVE0190E: File not found: …