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修复下载多媒体文件时，如果token正好无效时无法自动刷新token的问题

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BinaryWang 2016-09-22 17:00:10 +08:00
parent 2907d321ec
commit 26af3c52cf
1 changed files with 25 additions and 24 deletions
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49
weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/MediaDownloadRequestExecutor.java
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@ -1,11 +1,9 @@
package me.chanjar.weixin.common.util.http; package me.chanjar.weixin.common.util.http;
import java.io.File; import me.chanjar.weixin.common.bean.result.WxError;
import java.io.IOException; import me.chanjar.weixin.common.exception.WxErrorException;
import java.io.InputStream; import me.chanjar.weixin.common.util.StringUtils;
import java.util.regex.Matcher; import me.chanjar.weixin.common.util.fs.FileUtils;
import java.util.regex.Pattern;
import org.apache.http.Header; import org.apache.http.Header;
import org.apache.http.HttpHost; import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig; import org.apache.http.client.config.RequestConfig;
@ -14,14 +12,15 @@ import org.apache.http.client.methods.HttpGet;
import org.apache.http.entity.ContentType; import org.apache.http.entity.ContentType;
import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.CloseableHttpClient;
import me.chanjar.weixin.common.bean.result.WxError; import java.io.File;
import me.chanjar.weixin.common.exception.WxErrorException; import java.io.IOException;
import me.chanjar.weixin.common.util.StringUtils; import java.io.InputStream;
import me.chanjar.weixin.common.util.fs.FileUtils; import java.util.regex.Matcher;
import java.util.regex.Pattern;
/** /**
* 下载媒体文件请求执行器，请求的参数是String, 返回的结果是File * 下载媒体文件请求执行器，请求的参数是String, 返回的结果是File
* * 视频文件不支持下载
* @author Daniel Qian * @author Daniel Qian
*/ */
public class MediaDownloadRequestExecutor implements RequestExecutor<File, String> { public class MediaDownloadRequestExecutor implements RequestExecutor<File, String> {
@ -29,15 +28,12 @@ public class MediaDownloadRequestExecutor implements RequestExecutor<File, Strin
private File tmpDirFile; private File tmpDirFile;
public MediaDownloadRequestExecutor() { public MediaDownloadRequestExecutor() {
super();
} }
public MediaDownloadRequestExecutor(File tmpDirFile) { public MediaDownloadRequestExecutor(File tmpDirFile) {
super();
this.tmpDirFile = tmpDirFile; this.tmpDirFile = tmpDirFile;
} }
@Override @Override
public File execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, String queryParam) throws WxErrorException, IOException { public File execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, String queryParam) throws WxErrorException, IOException {
if (queryParam != null) { if (queryParam != null) {
@ -59,20 +55,20 @@ public class MediaDownloadRequestExecutor implements RequestExecutor<File, Strin
Header[] contentTypeHeader = response.getHeaders("Content-Type"); Header[] contentTypeHeader = response.getHeaders("Content-Type");
if (contentTypeHeader != null && contentTypeHeader.length > 0) { if (contentTypeHeader != null && contentTypeHeader.length > 0) {
// 下载媒体文件出错 if (contentTypeHeader[0].getValue().startsWith(ContentType.APPLICATION_JSON.getMimeType())) {
if (ContentType.TEXT_PLAIN.getMimeType().equals(contentTypeHeader[0].getValue())) { // application/json; encoding=utf-8 下载媒体文件出错
String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response); String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response);
throw new WxErrorException(WxError.fromJson(responseContent)); throw new WxErrorException(WxError.fromJson(responseContent));
} }
} }
// 视频文件不支持下载
String fileName = getFileName(response); String fileName = getFileName(response);
if (StringUtils.isBlank(fileName)) { if (StringUtils.isBlank(fileName)) {
return null; return null;
} }
String[] name_ext = fileName.split("\\.");
File localFile = FileUtils.createTmpFile(inputStream, name_ext[0], name_ext[1], this.tmpDirFile); String[] nameAndExt = fileName.split("\\.");
return localFile; return FileUtils.createTmpFile(inputStream, nameAndExt[0], nameAndExt[1], this.tmpDirFile);
} finally { } finally {
httpGet.releaseConnection(); httpGet.releaseConnection();
@ -80,13 +76,18 @@ public class MediaDownloadRequestExecutor implements RequestExecutor<File, Strin
} }
protected String getFileName(CloseableHttpResponse response) { private String getFileName(CloseableHttpResponse response) throws WxErrorException {
Header[] contentDispositionHeader = response.getHeaders("Content-disposition"); Header[] contentDispositionHeader = response.getHeaders("Content-disposition");
if(contentDispositionHeader == null || contentDispositionHeader.length == 0){
throw new WxErrorException(WxError.newBuilder().setErrorMsg("无法获取到文件名").build());
}
Pattern p = Pattern.compile(".*filename=\"(.*)\""); Pattern p = Pattern.compile(".*filename=\"(.*)\"");
Matcher m = p.matcher(contentDispositionHeader[0].getValue()); Matcher m = p.matcher(contentDispositionHeader[0].getValue());
m.matches(); if(m.matches()){
String fileName = m.group(1); return m.group(1);
return fileName; }
throw new WxErrorException(WxError.newBuilder().setErrorMsg("无法获取到文件名").build());
} }
} }