Can read local report

@@ -5,7 +5,7 @@ package com.xkl;
  */
 public interface Constants {
 
-    //String URL_PREFIX = "http://127.0.0.1:8090";
+//    String URL_PREFIX = "http://127.0.0.1:8090";
     //String URL_PREFIX = "http://139.129.166.85:8090";
     String URL_PREFIX = "https://www.hanhezy.com:8090/";
 

-package main.java.com;
+package com.xkl;
 
 
 import java.io.BufferedReader;
@@ -23,7 +23,7 @@ public class FileUtil {
      * @param filePath
      */
     public static Set<String> readTxtFile(String filePath) {
-        Set<String> resSet = new HashSet<>();
+        Set<String> resSet = new HashSet<String>();
         try {
             String encoding = "GBK";
             File file = new File(filePath);
@@ -44,16 +44,39 @@ public class FileUtil {
             e.printStackTrace();
         }
         return resSet;
+    }
+
+    public static String readLine(String filePath) {
+        Set<String> resSet = new HashSet<String>();
+        try {
+            String encoding = "GBK";
+            File file = new File(filePath);
+            if (file.isFile() && file.exists()) { //判断文件是否存在
+                InputStreamReader read = new InputStreamReader(
+                        new FileInputStream(file), encoding);//考虑到编码格式
+                BufferedReader bufferedReader = new BufferedReader(read);
+                String lineTxt = null;
+                while ((lineTxt = bufferedReader.readLine()) != null) {
+                    if (!lineTxt.trim().toLowerCase().equals("")) {
+                        return lineTxt.trim();
+                    }
 
+                }
+                read.close();
+            } else {
+                System.out.println("找不到指定的文件");
+            }
+        } catch (Exception e) {
+            System.out.println("读取文件内容出错");
+            e.printStackTrace();
+        }
+        return "";
     }
 
     public static void main(String argv[]) {
         String filePath = "C:\\Users\\zhaoyue\\Desktop\\ids";
 //      "res/";
-        Set<String> resSet = readTxtFile(filePath);
-        for (String line : resSet) {
-            System.out.println(line);
-        }
+        System.out.println(readLine(filePath));
     }