异常处理显示

f90d0a11 · yanzg · dcf5529c · f90d0a11
Commit f90d0a11 authored May 12, 2019 by yanzg
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TokenHelper.java ...l-db/src/main/java/com/yanzuoguang/token/TokenHelper.java +3 -0

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--- a/yzg-util-db/src/main/java/com/yanzuoguang/token/TokenHelper.java
+++ b/yzg-util-db/src/main/java/com/yanzuoguang/token/TokenHelper.java
@@ -162,6 +162,9 @@ public class TokenHelper {
    public static String getTokenString() {
        String id = getCurrentId();
        TokenData tokenData = cache.get(id);
+        if (tokenData == null) {
+            return StringHelper.EMPTY;
+        }
        return JsonHelper.serialize(tokenData);
    }