修改中文乱码，测试接口

src/main/java/com/sunyard/util/FileUtil.java

@@ -65,9 +65,9 @@ public class FileUtil {
      * @param data 数据
      */
     public static void printDataToFile(String path, String data) {
-        OutputStreamWriter osw = null;
+        BufferedWriter osw = null;
         try {
-            osw = new OutputStreamWriter(new FileOutputStream(path));
+            osw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(path), "UTF-8"));
 
             osw.write(data);