🎨 修复 GsonParser 与低版本 Gson 的兼容性问题

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/json/GsonParser.java

@@ -12,14 +12,14 @@ import java.io.Reader;
 public class GsonParser {
 
   public static JsonObject parse(String json) {
-    return JsonParser.parseString(json).getAsJsonObject();
+    return new JsonParser().parse(json).getAsJsonObject();
   }
 
   public static JsonObject parse(Reader json) {
-    return JsonParser.parseReader(json).getAsJsonObject();
+    return new JsonParser().parse(json).getAsJsonObject();
   }
 
   public static JsonObject parse(JsonReader json) {
-    return JsonParser.parseReader(json).getAsJsonObject();
+    return new JsonParser().parse(json).getAsJsonObject();
   }
 }

weixin-java-common/src/test/java/me/chanjar/weixin/common/util/json/GsonParserTest.java

@@ -0,0 +1,47 @@
+package me.chanjar.weixin.common.util.json;
+
+import com.google.gson.JsonObject;
+import com.google.gson.stream.JsonReader;
+import org.testng.annotations.Test;
+
+import java.io.StringReader;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertNotNull;
+
+/**
+ * GsonParser 测试类
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ */
+public class GsonParserTest {
+
+  @Test
+  public void testParseString() {
+    String json = "{\"code\":\"ALREADY_EXISTS\",\"message\":\"当前订单已关闭，可查询订单了解关闭原因\"}";
+    JsonObject jsonObject = GsonParser.parse(json);
+    assertNotNull(jsonObject);
+    assertEquals(jsonObject.get("code").getAsString(), "ALREADY_EXISTS");
+    assertEquals(jsonObject.get("message").getAsString(), "当前订单已关闭，可查询订单了解关闭原因");
+  }
+
+  @Test
+  public void testParseReader() {
+    String json = "{\"code\":\"SUCCESS\",\"message\":\"处理成功\"}";
+    StringReader reader = new StringReader(json);
+    JsonObject jsonObject = GsonParser.parse(reader);
+    assertNotNull(jsonObject);
+    assertEquals(jsonObject.get("code").getAsString(), "SUCCESS");
+    assertEquals(jsonObject.get("message").getAsString(), "处理成功");
+  }
+
+  @Test
+  public void testParseJsonReader() {
+    String json = "{\"errcode\":0,\"errmsg\":\"ok\"}";
+    JsonReader jsonReader = new JsonReader(new StringReader(json));
+    JsonObject jsonObject = GsonParser.parse(jsonReader);
+    assertNotNull(jsonObject);
+    assertEquals(jsonObject.get("errcode").getAsInt(), 0);
+    assertEquals(jsonObject.get("errmsg").getAsString(), "ok");
+  }
+}