token clean with prefix

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/CacheStorager.java

@@ -41,6 +41,9 @@ public interface CacheStorager<T> {
 
 	/**
 	 * 清除所有缓存对象(<font color="red">请慎重</font>)
+	 *
+	 * @param prefix
+	 *            缓存key的前缀
 	 */
-	void clear();
+	void clear(String prefix);
 }

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/FileTokenStorager.java

@@ -78,12 +78,12 @@ public class FileTokenStorager extends TokenStorager {
 	}
 
 	@Override
-	public void clear() {
+	public void clear(final String prefix) {
 		File[] files = new File(cachePath).listFiles(new FileFilter() {
 			@Override
 			public boolean accept(File file) {
 				return file.isFile()
-						&& file.getName().startsWith(prefix())
+						&& file.getName().startsWith(prefix)
 						&& "xml".equals(FileUtil.getFileExtension(file
 								.getName()));
 			}

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/MemcacheTokenStorager.java

@@ -50,7 +50,7 @@ public class MemcacheTokenStorager extends TokenStorager {
 	}
 
 	@Override
-	public void clear() {
+	public void clear(String prefix) {
 		throw new UnsupportedOperationException();
 	}
 

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/MemoryTokenStorager.java

@@ -45,7 +45,7 @@ public class MemoryTokenStorager extends TokenStorager {
 	}
 
 	@Override
-	public void clear() {
+	public void clear(String prefix) {
 		this.CONMAP.clear();
 	}
 }

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/RedisTokenStorager.java

@@ -126,11 +126,11 @@ public class RedisTokenStorager extends TokenStorager {
 	}
 
 	@Override
-	public void clear() {
+	public void clear(String prefix) {
 		Jedis jedis = null;
 		try {
 			jedis = jedisPool.getResource();
-			Set<String> cacheKeys = jedis.keys(String.format("%s*", prefix()));
+			Set<String> cacheKeys = jedis.keys(String.format("%s*", prefix));
 			if (!cacheKeys.isEmpty()) {
 				Pipeline pipeline = jedis.pipelined();
 				for (String cacheKey : cacheKeys) {

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/TokenCreator.java

@@ -13,6 +13,7 @@ import com.foxinmy.weixin4j.model.Token;
  * @see
  */
 public abstract class TokenCreator implements CacheCreator<Token> {
+
 	protected final WeixinRequestExecutor weixinExecutor;
 
 	public TokenCreator() {
@@ -20,13 +21,22 @@ public abstract class TokenCreator implements CacheCreator<Token> {
 	}
 
 	/**
-	 * 缓存key:附加weixin4j_前缀
+	 * 缓存key的前缀
+	 *
+	 * @return 默认为weixin4j_
+	 */
+	public String prefix() {
+		return "weixin4j_";
+	}
+
+	/**
+	 * 缓存key:附加key前缀
 	 *
 	 * @return
 	 */
 	@Override
 	public String key() {
-		return String.format("weixin4j_%s", key0());
+		return String.format("%s%s", prefix(), key0());
 	}
 
 	/**

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/TokenHolder.java

@@ -76,13 +76,20 @@ public class TokenHolder {
 	}
 
 	/**
-	 * 手动移除token
+	 * 移除token
 	 *
 	 * @return 被移除的token
-	 * @throws WeixinException
 	 */
-	public Token evictToken() throws WeixinException {
+	public Token evictToken() {
 		String cacheKey = tokenCreator.key();
 		return tokenStorager.evict(cacheKey);
 	}
+
+	/**
+	 * 清除所有的token(<font color="red">请慎重</font>)
+	 */
+	public void clearToken() {
+		String prefix = tokenCreator.prefix();
+		tokenStorager.clear(prefix);
+	}
 }

weixin4j-base/src/main/java/com/foxinmy/weixin4j/token/TokenStorager.java

@@ -24,13 +24,4 @@ public abstract class TokenStorager implements CacheStorager<Token> {
 	public long ms() {
 		return 60 * 1000l;
 	}
-
-	/**
-	 * 缓存key的前缀
-	 *
-	 * @return 默认为weixin4j_
-	 */
-	public String prefix() {
-		return "weixin4j_";
-	}
 }