修改中文乱码，测试接口

src/main/java/com/sunyard/inf/SydCryptionApi.java

@@ -3,6 +3,8 @@ package com.sunyard.inf;
 import com.sun.org.apache.xml.internal.security.exceptions.Base64DecodingException;
 import com.sunyard.RetWrap;
 
+import java.io.UnsupportedEncodingException;
+
 /**
  * 对称加解密相关接口
  */
@@ -300,7 +302,7 @@ interface SydSYMApi {
      * @param outFilePath 解密后的数据文件所在的路径
      * @return 解密是否成功。false为失败，true为成功
      */
-    boolean SM4DecryptFileDataCBC(int keyType, String key, int inType, int outType, String inFilePath, String outFilePath);
+    boolean SM4DecryptFileDataCBC(int keyType, String key, int inType, int outType, String inFilePath, String outFilePath) throws UnsupportedEncodingException;
 
     /**
      * 使用SM4算法进行解密，其中加密模式为CBC,

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);
 

src/main/java/racal/sunyard/main/SydApi4j.java

@@ -1608,7 +1608,7 @@ public class SydApi4j implements SydApi {
                         iv = niv;
                         //存储iv
                         retWrap.put("iv", iv);
-                        System.out.println("下一iv长度:" + iv.length);
+//                        System.out.println("下一iv长度:" + iv.length);
                     }
                 }
 
@@ -4318,7 +4318,7 @@ public class SydApi4j implements SydApi {
      */
     // 测试通过
     @Override
-    public boolean SM4DecryptFileDataCBC(int keyType, String key, int inType, int outType, String inFilePath, String outFilePath) {
+    public boolean SM4DecryptFileDataCBC(int keyType, String key, int inType, int outType, String inFilePath, String outFilePath) throws UnsupportedEncodingException {
 
         byte[] msg = FileUtil.getDataFromFile(inFilePath);
 
@@ -4329,7 +4329,7 @@ public class SydApi4j implements SydApi {
         // 调用加密接口将数据加密
         byte[] result = SM4DecryptDataCBC(keyType, key, inType, outType, Util.hexString2Bytes(new String(msg)));
 
-        String str = new String(Util.hexString2Bytes(Util.bytes2HexString(result)));
+        String str = new String(result, "utf-8");
 
         FileUtil.printDataToFile(outFilePath, str);