我在 Maven 项目结构中使用可嵌入的 Tomcat
(像这里:https://devcenter.heroku.com/articles/create-a-java-web-application-using-embedded-tomcat)
但我没有部署到 Heroku。
我可以在 localhost:8080/
访问 index.jsp(甚至在添加 web.xml 之前)
但是我无法锻炼如何访问我的 servlet(即使在添加 web.xml 之前，也会收到 404)。
在 localhost:8080/Archery
试过
在 localhost:8080/servlets/servlet.ArcheryShootServlet
试过
尝试在 localhost:8080/servlet/servlet.ArcheryShootServlet
在 localhost:8080/servlet.ArcheryShootServlet
尝试过
在 localhost:8080/target/Archery
试过
在 localhost:8080/target/ArcheryShootServlet
试过
尝试在 localhost:8080/target/servlet.ArcheryShootServlet
我试过将它们放入已经是项目一部分的资源文件夹中。
我尝试添加一个 webResources 文件夹，并将其添加到
pom 文件配置:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.heroku.sample</groupId>
<artifactId>embeddedTomcatSample</artifactId>
<version>1.0-SNAPSHOT</version>
<name>embeddedTomcatSample Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<tomcat.version>7.0.34</tomcat.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-logging-juli</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper-el</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jsp-api</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.swinglabs</groupId>
<artifactId>swing-layout</artifactId>
<version>1.0.3</version>
</dependency>
</dependencies>
<build>
<finalName>embeddedTomcatSample</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>1.1.1</version>
<configuration>
<webResources>
<resource>
<directory>WebContent/WEB-INF</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.css</include>
<include>**/*.html</include>
</includes>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>appassembler-maven-plugin</artifactId>
<version>1.1.1</version>
<configuration>
<assembleDirectory>target</assembleDirectory>
<programs>
<program>
<mainClass>launch.ArcheryServer</mainClass>
<name>webapp</name>
</program>
</programs>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>assemble</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>ArcheryShootServlet</servlet-name>
<servlet-class>servlet.ArcheryShootServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ArcheryShootServlet</servlet-name>
<url-pattern>/Archery</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>/WEB-INF/index.jsp</welcome-file>
</welcome-file-list>
</web-app>
context.xml
<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" path="/Archery"/>
ArcheryShootServlet.java
package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(
name = "Archery",
urlPatterns = {"/Archery"}
)
public class ArcheryShootServlet extends HttpServlet {
protected void processRequest(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String xmlSent = req.toString();
System.out.println(xmlSent);
ServletOutputStream out = resp.getOutputStream();
PrintWriter test = resp.getWriter();
test.write("hello");
out.write("hello heroku".getBytes());
out.write(xmlSent.getBytes());
out.flush();
out.close();
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. doGet and doPost call processRequest">...
最佳答案
您的应用程序上下文路径是/Archery(在context.xml 中定义)
您的 servlet 路径也是 /Archery(@WebServlet 的 urlPatterns 属性)
它也被你的 web.xml 复制
所以，你的 URL 应该是 localhost:8080/Archery/Archery
首先是 server[:port]，然后是上下文路径，然后是 servlet 路径
无论如何，您必须修复项目结构才能使其正常工作。
如果您遵循 Maven 约定，Web 资源目录应该是 src/main/webapp
web.xml(和context.xml)应该放在该目录下的WEB-INF目录下。
在你打包war之后，只要确保这些文件在那里(在WEB-INF下)
关于maven - 如何使用可嵌入的tomcat访问maven项目结构中的tomcat servlet，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17967633/