bug fixed for jsonpath

alibaba · Nov 29, 2018 · 9c2e59f · 9c2e59f
1 parent 3efede7
commit 9c2e59f
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diff --git a/src/main/java/com/alibaba/fastjson/JSONPath.java b/src/main/java/com/alibaba/fastjson/JSONPath.java
@@ -90,6 +90,10 @@ public Object extract(DefaultJSONParser parser) {
             return this.eval(root);
         }
 
+        if (segments.length == 0) {
+            return parser.parse();
+        }
+
         Context context = null;
         for (int i = 0; i < segments.length; ++i) {
             Segment segment = segments[i];

diff --git a/src/test/java/com/alibaba/json/bvt/path/extract/JSONPath_extract_0.java b/src/test/java/com/alibaba/json/bvt/path/extract/JSONPath_extract_0.java
@@ -19,4 +19,10 @@ public void test_1() throws Exception {
                 , JSONPath.extract(json, "$.f2")
                         .toString());
     }
+
+    public void test_2() throws Exception {
+        assertEquals("{}"
+                , JSONPath.extract("{}", "$")
+                        .toString());
+    }
 }