如何使Jersey2/Spring4在无web.xml配置上从@Configuration加载bean
如何使Jersey2/Spring4在无web.xml配置上从@Configuration加载bean
提问于 2016-08-31 20:06:49
为了学习(Spring很棒而且很神奇.)，我正在尝试使用泽西岛和Spring建立一个web应用程序(用于DI)。我已经设法使它正常工作，但只限于使用Spring配置。
我扩展了ResourceConfig
@ApplicationPath("/api")
public class JerseyWebApp extends ResourceConfig {
public JerseyWebApp() {
packages("com.company.controller");
}
} 我的HelloController.java
@Path("/hello")
public class HelloController {
private HelloService helloService;
@Autowired
public HelloController(HelloService helloService) {
this.helloService = helloService;
}
@GET
public String hello() {
return helloService.sayHello();
}
}我的HelloService.java
@Component
@Scope(value = BeanDefinition.SCOPE_PROTOTYPE)
public class HelloService {
public String sayHello() {
return "hello from jersey webapp";
}
}还有我的春天applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.company" />
</beans>还附加了我的pom文件
<properties>
<jersey2.version>2.23.2</jersey2.version>
<jaxrs.version>2.0.1</jaxrs.version>
<spring.version>4.3.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${jersey2.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.ext</groupId>
<artifactId>jersey-spring3</artifactId>
<version>${jersey2.version}</version>
<exclusions>
<exclusion>
<artifactId>spring-context</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-beans</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-core</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-web</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>jersey-server</artifactId>
<groupId>org.glassfish.jersey.core</groupId>
</exclusion>
<exclusion>
<artifactId>
jersey-container-servlet-core
</artifactId>
<groupId>org.glassfish.jersey.containers</groupId>
</exclusion>
<exclusion>
<artifactId>hk2</artifactId>
<groupId>org.glassfish.hk2</groupId>
</exclusion>
</exclusions>
</dependency>
<!--Spring 4-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>可以让泽西岛通过@Configuration类加载bean，还是应该考虑使用Spring /mvc引导整个应用程序。
回答 1
Stack Overflow用户
回答已采纳
发布于 2016-09-02 19:34:22
默认情况下，由于“某些原因”在文件jersey-spring3中查找类路径资源的库org.glassfish.jersey.server.spring.SpringWebApplicationInitializer.java：
sc.setInitParameter("contextConfigLocation", "classpath:applicationContext.xml");而且它不支持基于Java的Spring配置。这是一个已知的未解决的问题，发现了这里。
因此，要向Spring注册基于Java的注释配置，我必须解决这个问题，并使用ServletContainerInitializer的自定义实现引导我的web应用程序。
JerseyServletContainerInitializer.java
public class JerseyServletContainerInitializer implements ServletContainerInitializer {
@Override
public void onStartup(Set<Class<?>> classes, ServletContext servletContext) throws ServletException {
//Register spring configurations
AnnotationConfigWebApplicationContext springContext = new AnnotationConfigWebApplicationContext();
springContext.register(SpringConfig.class, JPAConfig.class);
servletContext.addListener(new RequestContextListener());
servletContext.addListener(new ContextLoaderListener(springContext));
springContext.setServletContext(servletContext);
//Register Jersey servlet
ServletRegistration.Dynamic servletRegistration = servletContext.addServlet("JerseyServlet", new ServletContainer());
servletRegistration.addMapping("/api/*");
servletRegistration.setLoadOnStartup(1);
servletRegistration.setInitParameter("javax.ws.rs.Application", JerseyResourceConfig.class.getName());
}
}JerseyResourceConfig.java
public class JerseyResourceConfig extends ResourceConfig {
public JerseyResourceConfig() {
packages("com.company.controller");
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/39258159
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