Warning: file_get_contents(/data/phpspider/zhask/data//catemap/4/jsp/3.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
嵌入式jetty从servlet转发到jsp_Jsp_Servlets_Jetty_Forwarding_Embedded Jetty - Fatal编程技术网

嵌入式jetty从servlet转发到jsp

嵌入式jetty从servlet转发到jsp,jsp,servlets,jetty,forwarding,embedded-jetty,Jsp,Servlets,Jetty,Forwarding,Embedded Jetty,我试图让我的嵌入式jetty servlet进行一些处理,然后将控制权传递给JSP,JSP将生成一个结果页 servlet被正确地映射和调用,但是它找不到JSP。因为我使用的是嵌入式jetty,所以我没有web.xml,也没有战争。也许这意味着jetty不知道在哪里可以找到我的JSP或其他东西。如果是这种情况,我如何告诉eclipse/jetty在哪里可以找到它,或者我如何调用forward缺少什么 注意:我使用的是一个常规的maven项目,所以我必须自己创建WEB-INF文件夹。可能是出了什么

我试图让我的嵌入式jetty servlet进行一些处理,然后将控制权传递给JSP,JSP将生成一个结果页

servlet被正确地映射和调用,但是它找不到JSP。因为我使用的是嵌入式jetty,所以我没有web.xml,也没有战争。也许这意味着jetty不知道在哪里可以找到我的JSP或其他东西。如果是这种情况,我如何告诉eclipse/jetty在哪里可以找到它,或者我如何调用forward缺少什么

注意:我使用的是一个常规的maven项目,所以我必须自己创建WEB-INF文件夹。可能是出了什么问题的线索

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.springframework.core.io.ClassPathResource;

public class RunHelloServlet {

public static void main(String[] args) throws Exception {
    Server server = new Server(8080);

    ServletContextHandler contextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);

    contextHandler.setContextPath(".");
    server.setHandler(contextHandler);

    contextHandler.addServlet(new ServletHolder(new HelloServlet()), "/hello");

    server.start();
    server.join();
}

public static class HelloServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public HelloServlet() {
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
        String par1 = request.getParameter("par1");
        request.setAttribute("key", par1);

        // logic

        try {
            RequestDispatcher r = request.getRequestDispatcher("/result.jsp");
            request.getRequestDispatcher("/WEB-INF/result.jsp").forward(request, response);
        }
        catch (ServletException e1) {
            e1.printStackTrace();
        }

    }
}
}

我的pom如下

<project xmlns="http://maven.apache.org/POM/4.0.0"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0     http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.hp.it.kmcs.search</groupId>
  <artifactId>JettyTest</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>JettyTest</name>
  <url>http://maven.apache.org</url>

 <properties>
    <jettyVersion>7.2.0.v20101020</jettyVersion>
  </properties>

  <dependencies>
    <dependency>
        <groupId>org.eclipse.jetty.aggregate</groupId>
        <artifactId>jetty-all-server</artifactId>
        <version>7.6.0.RC1</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>3.1.0.RELEASE</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>
  </dependencies>

  <build>
<plugins>
  <plugin>
    <!-- This plugin is needed for the servlet example -->
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jetty-maven-plugin</artifactId>
    <version>${jettyVersion}</version>
  </plugin>
  <plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.1</version>
    <executions>
      <execution><goals><goal>java</goal></goals></execution>
    </executions>
    <configuration>
      <mainClass>com.hp.it.kmcs.JettyTest.RunHelloServlet</mainClass>
    </configuration>
  </plugin>
</plugins>

4.0.0
com.hp.it.kmcs.search
JettyTest
0.0.1-快照
罐子
JettyTest
http://maven.apache.org
7.2.0.v20101020
org.eclipse.jetty.aggregate
jetty所有服务器
7.6.0.1
罐子
编译
org.springframework
弹簧芯
3.1.0.1发布
罐子
编译
org.mortbay.jetty
jetty maven插件
${jettyVersion}
org.codehaus.mojo
execmaven插件
1.1
JAVA
com.hp.it.kmcs.JettyTest.RunHelloServlet

您的嵌入式应用程序控制台是否显示如下信息:

INFO:oejw.StandardDescriptorProcessor:NO JSP Support for /servletpath, did not find org.apache.jasper.servlet.JspServlet

默认情况下,嵌入式Jetty没有启用JSP支持。有关详细信息,请参阅。HTH.

所以我使用setWar和正确的罐子来实现这一点。使用此代码可以直接寻址jsp(localhost:8080/result.jsp),更重要的是,可以使用servlet(localhost:8080/hello).forward命令转发到jsp。这将使我能够使用jsp提供一些动态内容

代码如下。。。(注意:嵌入式Jetty=>不需要web.xml)

xml

<project xmlns="http://maven.apache.org/POM/4.0.0"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0     http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.hp.it.kmcs.search</groupId>
  <artifactId>JettyTest</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>JettyTest</name>
  <url>http://maven.apache.org</url>

<properties>
    <jettyVersion>7.2.0.v20101020</jettyVersion>
</properties>
<dependencies>

    <dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-server</artifactId>
    <version>7.6.0.RC1</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-util</artifactId>
    <version>7.6.0.RC1</version>
    <type>jar</type>
    <classifier>config</classifier>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jsp-2.1-glassfish</artifactId>
    <version>2.1.v20100127</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.eclipse.jdt.core.compiler</groupId>
    <artifactId>ecj</artifactId>
    <version>3.5.1</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>servlet-api-2.5</artifactId>
    <version>6.1.14</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-webapp</artifactId>
    <version>7.6.0.RC0</version>
    <type>jar</type>
    <scope>compile</scope>
    </dependency>
</dependencies>

  <build>
    <plugins>
      <plugin>
        <!-- This plugin is needed for the servlet example -->
        <groupId>org.mortbay.jetty</groupId>
       <artifactId>jetty-maven-plugin</artifactId>
        <version>${jettyVersion}</version>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.1</version>
        <executions>
          <execution><goals><goal>java</goal></goals></execution>
        </executions>
        <configuration>
          <mainClass>com.hp.it.kmcs.JettyTest.RunHelloServlet</mainClass>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

4.0.0
com.hp.it.kmcs.search
JettyTest
0.0.1-快照
罐子
JettyTest
http://maven.apache.org
7.2.0.v20101020
org.eclipse.jetty
jetty服务器
7.6.0.1
罐子
编译
org.eclipse.jetty
码头
7.6.0.1
罐子
配置
编译
org.mortbay.jetty
jsp-2.1-glassfish
2.1.v20100127
罐子
编译
org.eclipse.jdt.core.compiler
欧洲法院
3.5.1
罐子
编译
org.mortbay.jetty
servlet-api-2.5
6.1.14
罐子
编译
org.eclipse.jetty
jetty网络应用程序
7.6.0.RC0
罐子
编译
org.mortbay.jetty
jetty maven插件
${jettyVersion}
org.codehaus.mojo
execmaven插件
1.1
JAVA
com.hp.it.kmcs.JettyTest.RunHelloServlet

没有控制台输出不会像这样抱怨。我现在在我的工作区中弄坏了一些东西:)但我会马上给你确切的控制台输出,关于JSP支持的部分至少可以说是令人困惑的。然而,它以这样一句话结束:你们可以使用一个已经使用控制台的jetty聚合罐,上面写着。。。。。。2011-12-22 14:12:17.262:INFO:oejs.Server:jetty-7.6.0.RC1 2011-12-22 14:12:17.370:INFO:oejsh.ContextHandler:started o.e.j.s.ServletContextHandler{/,file:/C:/dev/workspace/JettyTest/}2011-12-22 14:12:17.425:INFO:oejs.AbstractConnector:startedSelectChannelConnector@0.0.0.0:8080开始好的,看来没问题,这就是我遇到的问题。谢谢——这帮我找到了一个相关问题的答案。对我来说,从通用ServletContextHandler切换到WebAppContext解决了这个问题(带有guice servlet注入的嵌入式jetty)。我正在将ResourceBase设置为web应用程序路径。
<project xmlns="http://maven.apache.org/POM/4.0.0"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0     http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.hp.it.kmcs.search</groupId>
  <artifactId>JettyTest</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>JettyTest</name>
  <url>http://maven.apache.org</url>

<properties>
    <jettyVersion>7.2.0.v20101020</jettyVersion>
</properties>
<dependencies>

    <dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-server</artifactId>
    <version>7.6.0.RC1</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-util</artifactId>
    <version>7.6.0.RC1</version>
    <type>jar</type>
    <classifier>config</classifier>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jsp-2.1-glassfish</artifactId>
    <version>2.1.v20100127</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.eclipse.jdt.core.compiler</groupId>
    <artifactId>ecj</artifactId>
    <version>3.5.1</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>servlet-api-2.5</artifactId>
    <version>6.1.14</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-webapp</artifactId>
    <version>7.6.0.RC0</version>
    <type>jar</type>
    <scope>compile</scope>
    </dependency>
</dependencies>

  <build>
    <plugins>
      <plugin>
        <!-- This plugin is needed for the servlet example -->
        <groupId>org.mortbay.jetty</groupId>
       <artifactId>jetty-maven-plugin</artifactId>
        <version>${jettyVersion}</version>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.1</version>
        <executions>
          <execution><goals><goal>java</goal></goals></execution>
        </executions>
        <configuration>
          <mainClass>com.hp.it.kmcs.JettyTest.RunHelloServlet</mainClass>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>