Java spring mvc将路径和所有子项重定向到另一个域

我正在尝试解决如何从我的webapp重定向到另一台服务器，保留任何路径并获取vars

乙二醇

我很想用这样的东西

<mvc:view-controller path="/foo/**" view-name="redirect:http://foo.com**" />

---

类似的事情可能应该通过Apache在虚拟主机上完成

以下是一些文档的链接：

public class DomainRedirectFilter extends OncePerRequestFilter {

    private String destinationDomain;
    private String sourceServletPath;

    @Override
    protected void doFilterInternal(HttpServletRequest request, 
             HttpServletResponse response, FilterChain filterChain)
             throws ServletException, IOException {
        String path = request.getServletPath();
        path = StringUtils.replace(path, getSourceServletPath(), "");
        if (request.getQueryString() != null) {
            path += '?' + request.getQueryString();
        }

        response.setHeader( "Location", getDestinationDomain() + path );
        response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
        response.setHeader( "Connection", "close" );
    }

---

我最后使用了一个过滤器

在基础设施方面，这似乎是最简单的方法

筛选器实现：

public class DomainRedirectFilter extends OncePerRequestFilter {

    private String destinationDomain;
    private String sourceServletPath;

    @Override
    protected void doFilterInternal(HttpServletRequest request, 
             HttpServletResponse response, FilterChain filterChain)
             throws ServletException, IOException {
        String path = request.getServletPath();
        path = StringUtils.replace(path, getSourceServletPath(), "");
        if (request.getQueryString() != null) {
            path += '?' + request.getQueryString();
        }

        response.setHeader( "Location", getDestinationDomain() + path );
        response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
        response.setHeader( "Connection", "close" );
    }

web.xml

<filter>
    <filter-name>fooDomainRedirectFilter</filter-name>
    <filter-class>com.abc.mvc.util.DomainRedirectFilter</filter-class>
    <init-param>
        <param-name>destinationDomain</param-name>
        <param-value>http://foo.abc.com</param-value>
    </init-param>
    <init-param>
        <param-name>sourceServletPath</param-name>
        <param-value>/foo</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>fooDomainRedirectFilter</filter-name>
    <url-pattern>/foo/*</url-pattern>
    <url-pattern>/foo</url-pattern>
</filter-mapping>

---

如果您使用的是类似于

Jetty

的东西，您也可以作为

处理程序来执行此操作

public class DomainRedirectHandler extends HandlerWrapper {

    @Override
    public void handle(String target, Request baseRequest, HttpServletRequest request,
            HttpServletResponse response) throws IOException, ServletException {

        String hostName = request.getHeader("Host");
        if (hostName == null) {
            getHandler().handle(target, baseRequest, request, response);
            return;
        }

        // see if the host header has a domain name that we are redirecting
        hostName = hostName.toLowerCase();
        int index = hostName.indexOf(':');
        if (index >= 0) {
            // cut off the optional port suffix
            hostName = hostName.substring(0, index);
        }

        if (hostName.equals("some.domain.com")) {
            response.sendRedirect("https://some.other.domain.com");
        } else {
            getHandler().handle(target, baseRequest, request, response);
        }
    }
}

这显然需要在处理程序链中的内容处理程序生效之前进行。
理想情况下，我们不希望在这个等式中包含apache httpd。我不认为只有Spring MVC可以做到这一点，因为Spring MVC所做的只是为servlet提供一个web框架。必须在servlet容器级别执行某些操作（例如Tomcat，或者通过代理将Apache重定向到Tomcat）。
public class DomainRedirectHandler extends HandlerWrapper {

    @Override
    public void handle(String target, Request baseRequest, HttpServletRequest request,
            HttpServletResponse response) throws IOException, ServletException {

        String hostName = request.getHeader("Host");
        if (hostName == null) {
            getHandler().handle(target, baseRequest, request, response);
            return;
        }

        // see if the host header has a domain name that we are redirecting
        hostName = hostName.toLowerCase();
        int index = hostName.indexOf(':');
        if (index >= 0) {
            // cut off the optional port suffix
            hostName = hostName.substring(0, index);
        }

        if (hostName.equals("some.domain.com")) {
            response.sendRedirect("https://some.other.domain.com");
        } else {
            getHandler().handle(target, baseRequest, request, response);
        }
    }
}