java - 使用 Jersey 运行 Rest 客户端

Question

在网络服务器上部署了一个简单的网络服务，它的url是

http://localhost:8080/jersey-example-new/rs/account/details/param

现在我顺便尝试通过 Jersey 客户端使用这个服务:

        ClientConfig config = new DefaultClientConfig();
        Client client = Client.create(config);
        WebResource service = client.resource(UriBuilder.fromUri("http://localhost:8080/jersey-example-new/rs/account/details/andy").build());

项目依赖:

        <dependency>
            <groupId>javax.ws.rs</groupId>
            <artifactId>javax.ws.rs-api</artifactId>
            <version>2.0.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-server</artifactId>
            <version>1.9.1</version>
        </dependency>

        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-client</artifactId>
            <version>1.9.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.1.3</version>
        </dependency>

我得到错误:

Exception in thread "main" java.lang.AbstractMethodError:
javax.ws.rs.core.UriBuilder.uri(Ljava/lang/String;)Ljavax/ws/rs/core/UriBuilder;
at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:119)     at
com.javacodegeeks.jersey.main.RestClient.main(RestClient.java:21)

Answer 1

你的依赖很乱。请注意以下几点:

Jersey 1.x 和 Jersey 2.x 使用不同的包名称:

• Jersey 1.x:com.sun.jersey
• Jersey 2.x:org.glassfish.jersey

Jersey 1.x 和 Jersey 2.x 实现了不同版本的 JAX-RS 规范:

• Jersey 1.x:JSR 311 (jsr311-api Artifact )
• Jersey 2.x:JSR 339 (javax.ws.rs-api Artifact )

Jersey 1.x 依赖项

要使用 Jersey 1.x，您需要在 pom.xml 中添加以下依赖项:

<!-- server -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-server</artifactId>
    <version>1.19</version>
</dependency>

<!-- client -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-client</artifactId>
    <version>1.19</version>
</dependency>

阅读更多关于 Jersey 1.x 依赖项的信息 here .

Jersey 2.x 依赖项

如果您想使用Jersey 2.x，您必须将以下依赖项添加到您的pom.xml:

<!-- server -->
<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <!-- if your container implements Servlet API older than 3.0, 
         use "jersey-container-servlet-core"  -->
    <artifactId>jersey-container-servlet</artifactId>
    <version>2.22.1</version>
</dependency>

<!-- client -->
<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.22.1</version>
</dependency>

阅读更多关于 Jersey 2.x 依赖项的信息 here .