我正在尝试使用IntelliJ IDEA,Jersey v2.25.1,Maven和Tomcat v8.5.11在Java(JDK 1.8.0.121)中构建一个简单的REST服务。
我在com.example包中编写了一个带有GET方法的简单类
package com.example;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
@Path("/hello")
public class HelloWorld {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getMessage() {
return "Hello world!";
}
}
我的web.xml是:
<?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">
<display-name>Simple Web Application</display-name>
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.example</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
我的pom.xml是:
<?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>simple_rest</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<jersey2.version>2.25.1</jersey2.version>
<jaxrs.version>2.0.1</jaxrs.version>
</properties>
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<!-- JAX-RS -->
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>${jaxrs.version}</version>
</dependency>
<!-- Jersey 2.25.1 -->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${jersey2.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>${jersey2.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>${jersey2.version}</version>
</dependency>
</dependencies>
我试过在我的第一台电脑上运行它有效;但如果我在笔记本电脑上运行相同的代码,当我访问http://localhost:8080/hello时,它会返回HTTP 404错误。
当我收到404错误时,我在服务器控制台上没有编译错误和错误消息。
你知道缺少什么吗? 在此先感谢:)
答案 0 :(得分:0)
如何在其他课程中添加@ApplicationPath
?这是示例代码。
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("/rest-v1")
public class YourApplication extends Application {}
之后,可以访问localhost:8080/rest-v1/hello
。