Question

我正在尝试检查以下所有条件是否返回true，然后进行验证，

，但是编译器无法显示“对于参数类型boolean，字符串未定义运算符&&”。我来自JS背景和JAVA语言，因此可以提供任何帮助。

    String refererHeader = httprequest.getHeader("referer");
    URL refererURL = new URL(refererHeader);

    String requestUrl = httprequest.getRequestURL().toString();

    String refererHost = refererURL.getHost();
    int refererPort = refererURL.getPort();

    String serverName = httprequest.getServerName();
    int serverPort = httprequest.getServerPort();


    if (refererHeader == null) {
        httpresponse.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        return;
    }
    //Only if the refererhost , port match with server name and port and if the pathinfo matches
    if(refererHeader.equals(requestUrl) &&
     refererHost.equals(serverName) &&
      serverPort == refererPort &&
       refererURL.getPath() + "?" + refererURL.getQuery().equals(PATH)) {
        chain.doFilter(request, response);
    }

Answer 1

更改

refererURL.getPath() + "?" + refererURL.getQuery().equals(PATH)

到

(refererURL.getPath() + "?" + refererURL.getQuery()).equals(PATH)

未为参数类型布尔值，字符串定义运算符&&

1 个答案: