Can read local report

+package main.java.com;
+
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Created by zhaoyue on 2017/3/7.
+ */
+public class FileUtil {
+    /**
+     * 功能：Java读取txt文件的内容
+     * 步骤：1：先获得文件句柄
+     * 2：获得文件句柄当做是输入一个字节码流，需要对这个输入流进行读取
+     * 3：读取到输入流后，需要读取生成字节流
+     * 4：一行一行的输出。readline()。
+     * 备注：需要考虑的是异常情况
+     *
+     * @param filePath
+     */
+    public static Set<String> readTxtFile(String filePath) {
+        Set<String> resSet = new HashSet<>();
+        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) {
+                    resSet.add(lineTxt.toLowerCase().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 resSet;
+
+    }
+
+    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);
+        }
+    }
+
+
+}
+