支持配置JSON，并自动转成相应类型

Author: zxhdaniel

disconf-client/src/main/java/com/baidu/disconf/client/support/utils/ClassUtils.java

@@ -5,6 +5,8 @@
 import java.util.HashSet;
 import java.util.Set;
 
+import com.google.gson.Gson;
+
 /**
  * 类工具
  *
@@ -155,9 +157,20 @@ public static Object getValeByType(Class<?> type, Object value)
 
             return Double.valueOf(dataValue);
 
-        } else {
-
-            return value;
+        }  else if (typeName.equals("string")
+                || typeName.equals("java.lang.string")) {
+
+            return dataValue;
+        } 
+        else {
+			try {
+				// 其他类型尝试JSON解析
+				Gson gson = new Gson();
+				return gson.fromJson(value.toString(), type);
+			} catch (Exception ex) {
+				ex.printStackTrace();
+			}
+			return value;
         }
     }
 

disconf-client/src/test/java/com/baidu/disconf/client/support/utils/ClassUtilsTest.java

@@ -0,0 +1,26 @@
+package com.baidu.disconf.client.support.utils;
+
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+import java.util.Map;
+
+import org.junit.Test;
+
+public class ClassUtilsTest {
+
+	@SuppressWarnings("unchecked")
+	@Test
+	public void testGetValeByType() throws Exception {
+		assertTrue(ClassUtils.getValeByType(Integer.class, "10086").equals(new Integer(10086)));
+		assertTrue(ClassUtils.getValeByType(Long.class, "1688").equals(new Long(1688)));
+		assertTrue(ClassUtils.getValeByType(Boolean.class, "true").equals(new Boolean(true)));
+		assertTrue(ClassUtils.getValeByType(Double.class, "234.4").equals(new Double(234.4)));
+		assertTrue(ClassUtils.getValeByType(String.class, "234.4").equals(String.valueOf(234.4)));
+		List<Integer> list = (List<Integer>) ClassUtils.getValeByType(List.class, "[100,200,300]");
+		assertTrue(list.contains(new Double(100)));
+		Map<String, String> map = (Map<String, String>) ClassUtils.getValeByType(Map.class, "{\"name\":\"zxh\",\"city\":\"shenzhen\"}");
+		assertTrue(map.get("name").equals("zxh"));
+	}
+
+}