增加临时文件目录配置

在下载多媒体文件下载时可以指定临时文件目录。

weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpConfigStorage.java

@@ -1,5 +1,7 @@
 package me.chanjar.weixin.cp.api;
 
+import java.io.File;
+
 import me.chanjar.weixin.common.bean.WxAccessToken;
 
 /**
@@ -58,5 +60,7 @@ public interface WxCpConfigStorage {
   public String getHttp_proxy_username();
 
   public String getHttp_proxy_password();
+  
+  public File getTmpDirFile();
 
 }

weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpInMemoryConfigStorage.java

@@ -1,5 +1,7 @@
 package me.chanjar.weixin.cp.api;
 
+import java.io.File;
+
 import me.chanjar.weixin.common.bean.WxAccessToken;
 
 /**
@@ -28,6 +30,8 @@ public class WxCpInMemoryConfigStorage implements WxCpConfigStorage {
   protected volatile String jsapiTicket;
   protected volatile long jsapiTicketExpiresTime;
 
+  protected volatile File tmpDirFile;
+
   public String getAccessToken() {
     return this.accessToken;
   }
@@ -189,7 +193,16 @@ public class WxCpInMemoryConfigStorage implements WxCpConfigStorage {
         ", http_proxy_password='" + http_proxy_password + '\'' +
         ", jsapiTicket='" + jsapiTicket + '\'' +
         ", jsapiTicketExpiresTime='" + jsapiTicketExpiresTime + '\'' +
+        ", tmpDirFile='" + tmpDirFile + '\'' +
         '}';
   }
 
+  public File getTmpDirFile() {
+    return tmpDirFile;
+  }
+
+  public void setTmpDirFile(File tmpDirFile) {
+    this.tmpDirFile = tmpDirFile;
+  }
+
 }

weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpServiceImpl.java

@@ -78,6 +78,11 @@ public class WxCpServiceImpl implements WxCpService {
 
   protected WxSessionManager sessionManager = new StandardSessionManager();
 
+  /**
+   * 临时文件目录
+   */
+  protected File tmpDirFile;
+
   public boolean checkSignature(String msgSignature, String timestamp, String nonce, String data) {
     try {
       return SHA1.gen(wxCpConfigStorage.getToken(), timestamp, nonce, data).equals(msgSignature);
@@ -236,7 +241,8 @@ public class WxCpServiceImpl implements WxCpService {
 
   public File mediaDownload(String media_id) throws WxErrorException {
     String url = "https://qyapi.weixin.qq.com/cgi-bin/media/get";
-    return execute(new MediaDownloadRequestExecutor(), url, "media_id=" + media_id);
+    
+    return execute(new MediaDownloadRequestExecutor(wxCpConfigStorage.getTmpDirFile()), url, "media_id=" + media_id);
   }
 
 
@@ -638,6 +644,14 @@ public class WxCpServiceImpl implements WxCpService {
   public void setSessionManager(WxSessionManager sessionManager) {
     this.sessionManager = sessionManager;
   }
+  
+  public File getTmpDirFile() {
+    return tmpDirFile;
+  }
+
+  public void setTmpDirFile(File tmpDirFile) {
+    this.tmpDirFile = tmpDirFile;
+  }
 
   public static void main(String[] args) {
     Float a = 3.1f;