• WebService:java配置类形式发布WebService接口及遇见的问题总结


    配置WebService前需要以下依赖jar包

    #版本只供参考,具体看项目
    <dependency>
            <grouId>org.apache.cxf</grouId>
            <artifactId>cxf-rt-frontend-jaxws</artifactId>
            <version>3.1.6</version>
    </dependency>
    <dependency>
            <grouId>org.apache.cxf</grouId>
            <artifactId>cxf-rt-transports-http</artifactId>
            <version>3.1.6</version>
    </dependency>

    编写配置类

    import javax.xml.ws.Endpoint;
    import org.apache.cxf.Bus;
    import org.apache.cxf.bus.spring.SpringBus;
    import org.apache.cxf.jaxws.EndpointImpl;
    import org.apache.cxf.transport.servlet.CXFServlet;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.beans.factory.ObjectFactory;
    import org.springframework.boot.autoconfigure.web.HttpMessageConverters;
    import org.springframework.boot.web.servlet.ServletRegistrationBean;
    import org.springframework.http.MediaType;
    import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
    import org.springframework.web.cors.CorsConfiguration;
    import org.springframework.web.cors.UrlBassedCorsConfigurationSource;
    import org.springframework.web.filter.CorsFilter;
    import org.springframework.web.servlet.DispatcherServlet;
    
    @Configuration
    public class CxfConfig{
    
    
        //配置WebService的前缀路径
        @Bean
        public ServletRegistrationBean dispatcherServlet(){
            return new ServletRegistrationBean(new CXFServlet(), "/path/*");
        }
    
        @Bean
        public SpringBus springBus(){ return new SpringBus(); }
    
        //实例化@webservice接口的实现类
        @Bean
        public ****Impl *****Impl(){  return new ******Impl(); }
    
        //配置接口暴露路径(后缀路径)
        @Bean
        public Endpoint endpoint(){
            EndpointImpl endpoint = new EndpointImpl(springBus(), *****Impl());
            endpoint.publish("/Impl");
            return endpoint;
        }
    
    }

    问题一:配置webService后,Controller不能访问,失效

    解决方法:

        //controller失效,需要配置新的DispatcherServlet来扫描Controller的类
        @Bean
        public ServletRegistrationBean restServlet(){
            
            //注解扫描上下文
            AnnotationConfigWebApplicationContext applicationContext = new AnnotationConfigWebApplicationContext();
            //扫描Controller所在的路径
            applicationContext.scan("com.brinfo.java.controller");
            //通过构建函数指定dispatcherServlet的上下文
            DispatcherServlet rest_dispatcherServlet = new DispatcherServlet(applicationContext);
            //用SetvletRegistrationBean包装servlet
            ServletRegistrationBean registrationBean = new ServletRegistrationBean(rast_dispatcherServlet);
            //优先级
            registrationBean.setLoadOnStartup(1);
            //指定urlmapping
            registrationBean.addUrlMappings("/*");
            
            return registrationBean;
        }

    问题二:前端跨域问题,需要后端配置跨域

        private CorsConfiguration corsConfiguration(){
            CorsConfiguration corsConfiguration = new CorsConfiguration();
            corsConfiguration.addAllowedOrigin("*");
            corsConfiguration.addAllowedHeader("*");
            corsConfiguration.addAllowedMethod("*");
            corsConfiguration.setAllowCredentials(true);
            corsConfiguration.setMaxAge(360011);
            return corsConfiguration;
        }
    
        //解决跨域问题
        @Bean
        public CorsFilter corsFilter(){
            UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
            source.registerCorsConfiguration("/**",corsConfiguration());
            return new CorsFilter(source);
        }

    问题三:webService启动报错:Factory method 'endpoint' threw exception; nested exception is javax.xml.WebServiceException:org.apache.cxf.service.factory.ServiceConstructionException

    记住!这个报错的原因之一 webService的入参和返回值可以void、String、不要写对象!

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  • 原文地址:https://www.cnblogs.com/nhdlb/p/12884920.html
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