如何使用嵌入式Tomcat 8和Spring Boot将子域转换为路径

创建您自己的过滤器。

该过滤器应：

• 检查是否必须重写您的请求
• 如果是，则重写URL和URI
• 转发请求
• 它再次通过相同的过滤器到达，但先检查将传递错误
• 不要忘记，要小心打电话

  chain.doFilter

转发不会更改浏览器中的任何URL。只需发送文件内容即可。

遵循代码可能是此类过滤器的实现。这不是任何干净的代码。只是快速而肮脏的工作代码：

@Componentpublic class SubdomainToReversePathFilter implements Filter {    @Override    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {        final HttpServletRequest req = (HttpServletRequest) request;        final String requestURI = req.getRequestURI();        if (!requestURI.endsWith("/")) { chain.doFilter(request, response);        } else { final String servername = req.getServerName(); final Domain domain = getDomain(servername); if (domain.hasSubdomain()) {     final HttpServletRequestWrapper wrapped = wrapServerName(req, domain);     wrapped.getRequestDispatcher(requestURI + domain.getSubdomainAsPath()).forward(wrapped, response); } else {     chain.doFilter(request, response); }        }    }    private Domain getDomain(final String domain) {        final String[] domainParts = domain.split("\.");        String mainDomain;        String subDomain = null;        final int dpLength = domainParts.length;        if (dpLength > 2) { mainDomain = domainParts[dpLength - 2] + "." + domainParts[dpLength - 1]; subDomain = reverseDomain(domainParts);        } else { mainDomain = domain;        }        return new Domain(mainDomain, subDomain);    }    private HttpServletRequestWrapper wrapServerName(final HttpServletRequest req, final Domain domain) {        return new HttpServletRequestWrapper(req) { @Override public String getServerName() {     return domain.getMaindomain(); } // more changes? getRequesetURL()? ...?        };    }    private String reverseDomain(final String[] domainParts) {        final List<String> subdomainList = Arrays.stream(domainParts, 0, domainParts.length - 2)//     .collect(Collectors.toList());        Collections.reverse(subdomainList);        return subdomainList.stream().collect(Collectors.joining("."));    }    @Override    public void init(final FilterConfig filterConfig) throws ServletException {    }    @Override    public void destroy() {    }}

这是Domain类：

public static class Domain {    private final String maindomain;    private final String subdomain;    public Domain(final String maindomain, final String subdomain) {        this.maindomain = maindomain;        this.subdomain = subdomain;    }    public String getMaindomain() {        return maindomain;    }    public String getSubdomain() {        return subdomain;    }    public boolean hasSubdomain() {        return subdomain != null;    }    public String getSubdomainAsPath() {        return "/" + subdomain.replaceAll("\.", "/") + "/";    }}

而且您需要一个能够捕获所有内容的控制器

@RestControllerpublic class CatchAllController {    @RequestMapping("**")    public FileSystemResource deliver(final HttpServletRequest request) {        final String file = ((String) request.getAttribute(HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE));        return new FileSystemResource(getStaticFile(file));    }    private File getStaticFile(final String path) {        try { // TODO handle correct return new File(CatchAllController.class.getResource("/static/" + path + "/index.html").toURI());        } catch (final Exception e) { throw new RuntimeException("not found");        }    }}

我不确定是否有必要重写中的其他方法

HttpServletRequestWrapper

另外，您还必须处理文件传递的情况（不存在，…）。