fix: 增大小文本文件检测字符编码的正确率;处理并发隐患

server/src/test/java/cn/keking/EncodingTests.java

@@ -17,7 +17,7 @@ import java.net.URISyntaxException;
 public class EncodingTests {
     @Test
     void testCharDet() throws URISyntaxException {
-        for (int i = 0; i < 28; i++) {
+        for (int i = 0; i < 29; i++) {
             File dir = new File(getClass().getClassLoader().getResource("testData\\" + i).toURI());
             String dirPath = dir.getPath();
             String textFileName = dir.list()[0];

server/src/test/resources/testData/28/Small GB2312

@@ -0,0 +1,3 @@
+发斯蒂芬斯蒂芬
+
+顶顶顶顶~