配置WebService前需要以下依赖jar包

#版本只供参考，具体看项目
org.apache.cxf cxf-rt-frontend-jaxws 3.1.6
org.apache.cxf cxf-rt-transports-http 3.1.6

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！