解决WMTS服务请求GetCapabilities时输出xml不完整

13693261870

2023-07-11 8500216eee0eb666a511f35ed06ab156b0573ee1

 src/main/java/com/moon/server/helper/HttpHelper.java

@@ -1,10 +1,13 @@
package com.moon.server.helper;

import com.moon.server.entity.all.StaticData;
import com.moon.server.entity.sys.ResEntity;
import org.apache.http.*;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.utils.URIUtils;
import org.apache.http.entity.InputStreamEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
@@ -19,9 +22,11 @@
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.HttpCookie;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.StandardCharsets;
import java.util.Enumeration;

/**
@@ -51,7 +56,7 @@
        }
    }

    public void service(HttpServletRequest request, HttpServletResponse response, String url, String cookie) throws ServletException, IOException {
    public void service(HttpServletRequest request, HttpServletResponse response, ResEntity entity, String url) throws ServletException, IOException {
        HttpRequest proxyRequest;
        if (request.getHeader(HttpHeaders.CONTENT_LENGTH) != null || request.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) {
            proxyRequest = newProxyRequestWithEntity(request, url);
@@ -63,9 +68,9 @@
        // copyRequestHeaders(request, proxyRequest, host);
        //setXrForwardedForHeader(request, proxyRequest);

        if (!StringHelper.isEmpty(cookie)) {
            proxyRequest.addHeader("Cookie", cookie + "; ");
        }
        //if (!StringHelper.isEmpty(cookie)) {
        //    proxyRequest.addHeader("Cookie", cookie + "; ");
        //}

        CloseableHttpClient client = null;
        HttpResponse proxyResponse = null;
@@ -83,7 +88,7 @@
            if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
                response.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
            } else {
                copyResponseEntity(proxyResponse, response);
                copyResponseEntity(proxyResponse, request, response, entity);
            }
        } catch (Exception ex) {
            throw new ServletException(ex.getMessage());
@@ -267,12 +272,29 @@
        return theUrl;
    }

    protected void copyResponseEntity(HttpResponse proxyResponse, HttpServletResponse response) throws IOException {
    protected void copyResponseEntity(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response, ResEntity res) throws IOException {
        HttpEntity entity = proxyResponse.getEntity();
        if (entity != null) {
            //String str = EntityUtils.toString(entity, "UTF-8")
            OutputStream servletOutputStream = response.getOutputStream();
            entity.writeTo(servletOutputStream);
        if (null == entity) {
            return;
        }

        OutputStream outputStream = response.getOutputStream();

        Header[] headers = proxyResponse.getHeaders("content-type");
        if (null != headers && headers.length > 0 && headers[0].getValue().contains(StaticData.TEXT_XML)) {
            String str = EntityUtils.toString(entity, "UTF-8");
            if (str.contains(res.getUrl())) {
                String proxyUrl = res.getProxy().replace("{token}", response.getHeader("token"));
                proxyUrl = request.getRequestURL().substring(0, request.getRequestURL().indexOf(proxyUrl) + proxyUrl.length());
                str = str.replace(res.getUrl(), proxyUrl);

                byte[] bytes = str.getBytes(StandardCharsets.UTF_8);
                response.setContentLength(bytes.length);
                outputStream.write(bytes);
            }
            return;
        }

        entity.writeTo(outputStream);
    }
}