实现服务的配置与接口的增删改查

src/com/dayrain/utils/FileUtils.java

@@ -0,0 +1,59 @@
+package com.dayrain.utils;
+
+import com.dayrain.entity.Configuration;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class FileUtils{
+
+    private static String configPath = Thread.currentThread().getContextClassLoader().getResource("resources/config.json").getFile();
+
+    public static void saveConfig(Configuration configuration){
+        FileWriter fileWriter = null;
+        try {
+            fileWriter = new FileWriter(configPath);
+            String config = new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(configuration);
+            fileWriter.write(config);
+            fileWriter.flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }finally {
+            try {
+                if(fileWriter != null) {
+                    fileWriter.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+
+    }
+
+    public static Configuration load() {
+        BufferedReader bufferedReader = null;
+        try {
+            StringBuilder configStr = new StringBuilder();
+            bufferedReader = new BufferedReader(new FileReader(configPath));
+            String buf = null;
+            while ((buf = bufferedReader.readLine()) != null) {
+                configStr.append(buf);
+            }
+            return new ObjectMapper().readValue(configStr.toString(), Configuration.class);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }finally {
+            try {
+                if(bufferedReader != null) {
+                    bufferedReader.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
+}