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我可以使用soap ui请求soap web服务服务器，但是当使用java时，我发现了一些问题，比如ClientProtocolException，请帮助我，我不知道我的代码有什么问题，我已经准备好配置代理和身份验证，但仍然出现错误，比如那，请帮助我，这是我的代码

package com.muf.ws.client;

@Configuration
public class ClientConfig {
    @Value("${client.default-uri}")
    private String defaultUri;

    @Bean
    Jaxb2Marshaller marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("com.creditinfo.cb5");

        return marshaller;
    }

    @Bean
    public WebServiceTemplate webServiceTemplate() {
        WebServiceTemplate webServiceTemplate = new WebServiceTemplate();
        UsernamePasswordCredentials user = new
                UsernamePasswordCredentials("username", "pass");
        webServiceTemplate.setMarshaller(marshaller());
        webServiceTemplate.setUnmarshaller(marshaller());
        webServiceTemplate.setDefaultUri(defaultUri);
        HttpHost host = new HttpHost("proxy", port);
        HttpComponentsMessageSender messageSender = new
                HttpComponentsMessageSender();
        webServiceTemplate.setMessageSender(messageSender);

        messageSender.setHttpClient(HttpClients.custom().setProxy(host).build());
        messageSender.setCredentials(user);
        return webServiceTemplate;
    }
    ...
}

这就是错误

 14:49:22,045 ERROR [org.springframework.boot.web.support.ErrorPageFilter] (default task-4) Forwarding to error page from request [/testWSDL] due to …