在基于JAX-WS的应用程序上启用HTTP OPTIONS方法

<filter>
    <filter-name>CorsFilter</filter-name>
    <filter-class>com.example.CorsFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>CorsFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class CorsFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // 初始化方法，可以在此处进行一些初始化操作
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        HttpServletResponse httpResponse = (HttpServletResponse) response;

        // 允许跨域请求的域名，可以根据实际情况进行配置
        httpResponse.setHeader("Access-Control-Allow-Origin", "*");
        httpResponse.setHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
        httpResponse.setHeader("Access-Control-Allow-Headers", "Content-Type");

        // 处理HTTP OPTIONS请求
        if (httpRequest.getMethod().equals("OPTIONS")) {
            httpResponse.setStatus(HttpServletResponse.SC_OK);
            return;
        }

        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
        // 销毁方法，可以在此处进行一些资源释放操作
    }
}