如何在 jersey 2(ResourceConfig) 中注册一个对象

Question

我想在 jersey 中注册一个 class 组件（对象）而不是 class 引用。我创建了一个由 main() 方法调用的 XYZResource class 并通过带有 DBI 对象的球衣进行配置。 DAOService daoService 有连接 DBI 连接和执行查询和 return 结果的 getDetails()。

我通过 Main Class com.example.Main

使用 IntelliJ IDE 和运行

当我击中我的 url http://localhost:9000/resource/test 而不是通过错误

javax.servlet.ServletException: A MultiException has 1 exceptions.  They are:
1. java.lang.NoSuchMethodException: Could not find a suitable constructor in com.example.AdminResource class.

    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:392)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:382)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:535)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:483)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:420)
root cause

A MultiException has 1 exceptions.  They are:
1. java.lang.NoSuchMethodException: Could not find a suitable constructor in com.example.AdminResource class.

    org.jvnet.hk2.internal.Collector.throwIfErrors(Collector.java:88)
    org.jvnet.hk2.internal.Utilities.justCreate(Utilities.java:852)
    org.jvnet.hk2.internal.ServiceLocatorImpl.create(ServiceLocatorImpl.java:814)
    org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:906)
    org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:898)
    org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:174)
    org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185)
    org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:103)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:128)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:110)
    org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:65)
    org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
    org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:250)
    org.glassfish.jersey.internal.Errors.call(Errors.java:271)
    org.glassfish.jersey.internal.Errors.call(Errors.java:267)
    org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:318)
    org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:236)
    org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1010)
    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:373)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:382)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:535)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:483)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:420)
root cause

java.lang.NoSuchMethodException: Could not find a suitable constructor in com.example.AdminResource class.
    org.glassfish.jersey.internal.inject.JerseyClassAnalyzer.getConstructor(JerseyClassAnalyzer.java:189)
    org.jvnet.hk2.internal.Utilities.getConstructor(Utilities.java:159)
    org.jvnet.hk2.internal.Utilities.justCreate(Utilities.java:850)
    org.jvnet.hk2.internal.ServiceLocatorImpl.create(ServiceLocatorImpl.java:814)
    org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:906)
    org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:898)
    org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:174)
    org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185)
    org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:103)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:128)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:131)
    org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:110)
    org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:65)
    org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
    org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:250)
    org.glassfish.jersey.internal.Errors.call(Errors.java:271)
    org.glassfish.jersey.internal.Errors.call(Errors.java:267)
    org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:318)
    org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:236)
    org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1010)
    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:373)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:382)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:535)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:483)
    org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:420)

技术使用：

Java - 8
嵌入式 tomcat - 8
泽西岛 2.5.1（REST）
JDBI 2.63.1（数据库服务）

Main.java

package com.example;

import com.core.db.DAOService;
import com.example.servlets.HelloWorldServlet;
import com.example.util.abc;
import org.apache.catalina.Context;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.startup.Tomcat;
import org.skife.jdbi.v2.DBI;

public class Main {

public static void main (String[] args) {
    Tomcat tomcat = new Tomcat();
    tomcat.setPort(9000);

    String baseDoc = new File("src/main/webapp").getAbsolutePath();
    Context ctx = tomcat.addContext("/servletSample", baseDoc);

    tomcat.addWebapp(null, "", baseDoc);
    tomcat.addServlet(ctx, "HelloWorld", new HelloWorldServlet());
    ctx.addServletMapping("/*", "HelloWorld");

    try { 

        final DBI XYZDBI = new DBI(/*url*/, /*username*/, /*password*/);
        /* DAOService is a class that has function getDetails() that retrive   data from database */
        final DAOService daoService = XYZDBI.onDemand(DAOService.class);
        final org.glassfish.jersey.server.ResourceConfig jerseyResource = new org.glassfish.jersey.server.ResourceConfig();

        /* Register XYZResource class instance with jersey Resouce */
        jerseyResource.register(new XYZResource(daoService));

        tomcat.start();
        } catch (LifecycleException e) {
            e.printStackTrace();
        }

        while (true) {
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
<artifactId>my-jersey</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>

<build>
    <finalName>my-embed-tomcat</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.5.1</version>
            <inherited>true</inherited>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

<dependencies>
   <!-- Dependencies for Jersey Web Application -->
    <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-servlet-api</artifactId>
        <version>7.0.42</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.ext</groupId>
        <artifactId>jersey-mvc-jsp</artifactId>
        <version>2.5.1</version>
    </dependency>

   <!-- Dependencies for Embedded Tomcat -->
   <dependency>
       <groupId>org.apache.tomcat.embed</groupId>
       <artifactId>tomcat-embed-core</artifactId>
       <version>8.0.26</version>
   </dependency>
   <dependency>
       <groupId>org.apache.tomcat.embed</groupId>
       <artifactId>tomcat-embed-logging-juli</artifactId>
       <version>8.0.26</version>
   </dependency>
   <dependency>
       <groupId>org.apache.tomcat.embed</groupId>
       <artifactId>tomcat-embed-jasper</artifactId>
       <version>8.0.26</version>
   </dependency>

   <dependency>
       <!--org.skife.jdbi.v2-->
       <groupId>org.jdbi</groupId>
       <artifactId>jdbi</artifactId>
       <version>2.63.1</version>
   </dependency>
   <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
       <version>1.7.7</version>
   </dependency>

   <dependency>
       <groupId>com.fasterxml.jackson.dataformat</groupId>
       <artifactId>jackson-dataformat-yaml</artifactId>
       <version>2.8.0.rc2</version>
   </dependency>
   <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
       <version>2.8.3</version>
   </dependency>
   <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-core</artifactId>
       <version>2.8.0.rc2</version>
   </dependency>
   <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-annotations</artifactId>
       <version>2.8.0.rc2</version>
   </dependency>
   <dependency>
       <groupId>microsoft.com</groupId>
       <artifactId>sqlJdbc4</artifactId>
       <version>4.0.2206.100</version>
   </dependency>
   <dependency>
       <groupId>commons-lang</groupId>
       <artifactId>commons-lang</artifactId>
       <version>2.6</version>
   </dependency>
</dependencies>

XYZResource.java

package com.example;

import com.core.db.DAOService;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.*;

@Path("resource")
public class XYZResource {

    private final DAOService daoService;

    public XYZResource(DAOService daoService) {
        this.daoService = daoService;        
    }

    @GET
    public String helloworld() {
        return "User - Resource";
    }

    @GET
    @Path("/test")
    public Response test() {
        Set<String> User = daoService.getDetails();
        Iterator<String> itr = User.iterator();
        return Response.status(200).entity(itr.next().toString())
                .header("Access-Control-Allow-Origin", "*")
                .header("Access-Control-Allow-Methods", "GET")
                .build();
        }
    }
}

MyApplication.java

package com.example;

import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.mvc.jsp.JspMvcFeature;

public class MyApplication extends ResourceConfig {

    public MyApplication() {

        this.packages(MyApplication.class.getPackage().getName()).register(JspMvcFeature.class);
    }
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
    <display-name>Jersey Jersey Application</display-name>

    <filter>
        <filter-name>Jersey Application Filter</filter-name>
        <filter-class>org.glassfish.jersey.servlet.ServletContainer</filter-class>
        <init-param>
            <param-name>javax.ws.rs.Application</param-name>
            <param-value>com.example.MyApplication</param-value>
        </init-param>
        <!-- pass to next filter if Jersey/App returns 404 -->
        <init-param>
            <param-name>jersey.config.servlet.filter.forwardOn404</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>Jersey Application Filter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

更新

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
    <artifactId>jersey-app</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <build>
        <finalName>my-embed-tomcat</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <properties>
        <tomcat.version>8.0.28</tomcat.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>


   <dependencies>
s
       <dependency>
           <groupId>org.glassfish.jersey.bundles.repackaged</groupId>
           <artifactId>jersey-guava</artifactId>
           <version>2.25.1</version>
       </dependency>

       <!-- Dependencies for Jersey Web Application -->
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-servlet-api</artifactId>
            <version>${tomcat.version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.ext</groupId>
            <artifactId>jersey-mvc-jsp</artifactId>
            <version>2.5.1</version>
            <exclusions>
                <exclusion>
                    <groupId>javax.servlet</groupId>
                    <artifactId>servlet-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
       <dependency>
           <groupId>org.glassfish.jersey.containers</groupId>
           <artifactId>jersey-container-servlet</artifactId>
           <version>2.5.1</version>
       </dependency>
       <!-- Dependencies for Embedded Tomcat -->
       <dependency>
           <groupId>org.apache.tomcat.embed</groupId>
           <artifactId>tomcat-embed-core</artifactId>
           <version>${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>
           <!--org.skife.jdbi.v2-->
           <groupId>org.jdbi</groupId>
           <artifactId>jdbi</artifactId>
           <version>2.63.1</version>
       </dependency>
       <dependency>
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-api</artifactId>
           <version>1.7.7</version>
       </dependency>

       <dependency>
           <groupId>com.fasterxml.jackson.dataformat</groupId>
           <artifactId>jackson-dataformat-yaml</artifactId>
           <version>2.8.0.rc2</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-databind</artifactId>
           <version>2.8.3</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-core</artifactId>
           <version>2.8.0.rc2</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-annotations</artifactId>
           <version>2.8.0.rc2</version>
       </dependency>
       <dependency>
           <groupId>microsoft.com</groupId>
           <artifactId>sqlJdbc4</artifactId>
           <version>4.0.2206.100</version>
       </dependency>
       <dependency>
           <groupId>commons-lang</groupId>
           <artifactId>commons-lang</artifactId>
           <version>2.6</version>
       </dependency>
    </dependencies>

</project>

Main.java

package com.example;

import org.apache.catalina.Context;
import org.apache.catalina.servlets.DefaultServlet;
import org.apache.catalina.startup.Tomcat;
import org.apache.tomcat.util.descriptor.web.FilterDef;
import org.apache.tomcat.util.descriptor.web.FilterMap;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.mvc.jsp.JspMvcFeature;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;

import javax.servlet.Filter;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import java.io.File;

/**
 * @author Paul Samsotha.
 */
public class Main {

    public static void main(String... args) throws Exception {
        Tomcat tomcat = new Tomcat();
        tomcat.setPort(9000);

        File base = new File(".");
        Context context = tomcat.addContext("", base.getAbsolutePath());

        Tomcat.addServlet(context, "default", new DefaultServlet());
        context.addServletMapping("/*", "default");

        final FilterDef def = new FilterDef();
        final FilterMap map = new FilterMap();

        def.setFilterName("jerseyFilter");
        def.setFilter(getJerseyFilter());
        context.addFilterDef(def);

        map.setFilterName("jerseyFilter");
        map.addURLPattern("/api/*");
        context.addFilterMap(map);

        tomcat.start();

        while (true) {
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    private static Filter getJerseyFilter() {
        final ResourceConfig config = new ResourceConfig()
                .register(new HelloResource(new Service()))
                .register(JspMvcFeature.class)
                .property(ServletProperties.FILTER_FORWARD_ON_404, true);
        return new ServletContainer(config);
    }

    public static class Service {
        public String getMessage() {
            return "Hello Tomcat!";
        }
    }

    @Path("tomcat")
    public static class HelloResource {
        private final Service service;

        public HelloResource (Service service) {
            this.service = service;
        }

        @GET
        public String get() {
            return this.service.getMessage();
        }
    }
}

Answer 1

你似乎有很多不必要的事情在进行。您有两种不同的配置。选一个。问题是包扫描导致的，它正在拾取资源并尝试注册它。

只需删除 web.xml 和 MyApplication，并使用您当前在主 class 中使用的 ResourceConfig。然后您可以使用 Jersey 的 ServletContainer 以编程方式注册 servlet，它既是 Filter 又是和 HttpServlet。所以你不需要 web.xml 来将 Jersey 配置为 Filter。 ServletContainer 已经是 Filter

new SevletContainer(youResourceConfig);

我不太熟悉 Tomcat 嵌入式，所以我不能说如何注册过滤器，但我相信快速搜索会找到答案。只需将 ServletContainer 注册为过滤器即可。

jersey.config.servlet.filter.forwardOn404 init-param 也可以配置过滤器注册。或者你可以只用 ResourceConfig 配置它，用它的 property 方法

resourceConfig.property("jersey.config.servlet.filter.forwardOn404", true);

或者更好的是，使用 the constant

property(ServletProperties.FILTER_FORWARD_ON_404, true);

更新

这是有效的完整设置（基于您的示例）。

import org.apache.catalina.Context;
import org.apache.catalina.servlets.DefaultServlet;
import org.apache.catalina.startup.Tomcat;
import org.apache.tomcat.util.descriptor.web.FilterDef;
import org.apache.tomcat.util.descriptor.web.FilterMap;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.mvc.jsp.JspMvcFeature;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;

import javax.servlet.Filter;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import java.io.File;

/**
 * @author Paul Samsotha.
 */
public class Main {

    public static void main(String... args) throws Exception {
        Tomcat tomcat = new Tomcat();
        tomcat.setPort(9000);

        File base = new File(".");
        Context context = tomcat.addContext("", base.getAbsolutePath());

        Tomcat.addServlet(context, "default", new DefaultServlet());
        context.addServletMapping("/*", "default");

        final FilterDef def = new FilterDef();
        final FilterMap map = new FilterMap();

        def.setFilterName("jerseyFilter");
        def.setFilter(getJerseyFilter());
        context.addFilterDef(def);

        map.setFilterName("jerseyFilter");
        map.addURLPattern("/api/*");
        context.addFilterMap(map);

        tomcat.start();

        while (true) {
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    private static Filter getJerseyFilter() {
        final ResourceConfig config = new ResourceConfig()
                .register(new HelloResource(new Service()))
                .register(JspMvcFeature.class)
                .property(ServletProperties.FILTER_FORWARD_ON_404, true);
        return new ServletContainer(config);
    }

    public static class Service {
        public String getMessage() {
            return "Hello Tomcat!";
        }
    }

    @Path("tomcat")
    public static class HelloResource {
        private final Service service;

        public HelloResource (Service service) {
            this.service = service;
        }

        @GET
        public String get() {
            return this.service.getMessage();
        }
    }
}

我做了一些改动：

不确定您为什么使用 Tomcat 7 Servlet API。我将其更改为其他 Tomcat 依赖项的 8.x 版本。

我还从 Jersey MVC 依赖项中排除了 Servlet API，因为它引入了较旧的 2.4 Servlet API

<dependency>
    <groupId>org.glassfish.jersey.ext</groupId>
    <artifactId>jersey-mvc-jsp</artifactId>
    <exclusions>
        <exclusion>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
        </exclusion>
    </exclusions>
</dependency>

我添加了一个 DefaultServlet 来处理页面。从测试来看（同样我不是 Tomcat 专家），似乎 this is required

通过这个例子你应该能够得到

http://localhost:9000/api/tomcat

Answer 2

首先，感谢 peeskillet 解决了我的问题。我在网上搜索，但没有找到确切的解决方案。

为了更好的参考和理解，我在 git-hub 上创建了一个演示应用程序。

jersey-mvc-jsp-freemarker-with-embedded-tomcat

使用的应用程序

Tomcat v8.x
泽西岛 v2.5.1
JSP
YML
自由标记
HTML/Angular/JavaScript

final ResourceConfig config = new ResourceConfig()
    .packages(Main.class.getPackage().getName())
    .register(new Resource(new Core(), configuration)) // create instance of Resource and dynamically register
    .register(JspMvcFeature.class) // register jspMVC
    .register(FreemarkerMvcFeature.class) // register FreemarkerMVC
    .property(ServletProperties.FILTER_FORWARD_ON_404, true);

return new ServletContainer(config);

如何在 jersey 2(ResourceConfig) 中注册一个对象

How to register an object in jersey 2(ResourceConfig)

java

maven

tomcat

jersey-2.0

jdbi

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