添加上传头像处理

src/main/java/com/archser/aserver/controller/UserController.java

 package com.archser.aserver.controller;
 
+import com.jfinal.upload.UploadFile;
+import java.io.File;
+import java.io.FileInputStream;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -18,6 +21,7 @@ import com.jfinal.kit.Ret;
 import com.jfinal.plugin.activerecord.Db;
 import com.jfinal.plugin.activerecord.Record;
 import com.jfinal.plugin.redis.Redis;
+import sun.misc.BASE64Encoder;
 
 /**
  * 用户相关操作
@@ -150,4 +154,59 @@ public class UserController extends Controller {
       }
   }
 
+
+  public void saveImage() {
+    String username = this.getAttr("username");
+    User user = User.dao.template("getUser", username).findFirst();
+    UploadFile file = getFile();
+    File imgFile = file.getFile();
+    if (imgFile != null) {
+      try {
+        byte[] imgBase = imageBase64(imgFile);
+        if (imgBase != null) {
+          user.setImage(imgBase);
+          user.update();
+        }
+      } catch (Exception e) {
+        e.printStackTrace();
+      }
+      imgFile.delete();
+      renderJson(Ret.ok());
+    } else {
+      renderJson(Ret.fail("msg", "修改头像失败"));
+    }
+  }
+
+  public byte[] imageBase64(File file) {
+    FileInputStream fis;
+    byte[] bytes = null;
+    try {
+      fis = new FileInputStream(file);
+      bytes = new byte[fis.available()];
+      fis.read(bytes);
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+    return bytes;
+  }
+
+  public void getImage() {
+    String username = this.getAttr("username");
+    User user = User.dao.template("getUser", username).findFirst();
+    byte[] image = user.getImage();
+    if (image == null) {
+      renderJson(Ret.ok("baseStr", image));
+      return;
+    }
+    String baseStr = image2Base64(image);
+    renderJson(Ret.ok("baseStr", baseStr));
+  }
+
+
+  public String image2Base64(byte[] image) {
+    BASE64Encoder encoder = new BASE64Encoder();
+    String base64Str = encoder.encode(image);
+    return base64Str;
+  }
+
 }