package com.maizuo.web.controller;
import com.maizuo.domain.Result;
import com.maizuo.util.ConstantsConfig;
import com.maizuo.util.Upload;
import hyxlog.Log;
import net.sf.json.JSONObject;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Date;
import java.util.List;
/**
* Created by qiyang on 2015/6/15 and improved by heisenberg on 2016/04/18
*/
@Controller
@RequestMapping("/api/upload")
public class UploadController {
@RequestMapping(value = "/img", method = RequestMethod.POST)
@ResponseBody
public Result uploadImg(@RequestParam(value = "file", required = false) MultipartFile file, String pathName,
Integer sizeRule, Integer isDeviation, HttpServletRequest request)
throws FileNotFoundException, IOException {
String loghead = "通用介面-上傳圖片:";
JSONObject json = new JSONObject();
if (file == null) {
Log.info(loghead + "上傳失敗:檔案為空");
return new Result(900001, "", "上傳失敗:檔案為空");
}
if (StringUtils.isBlank(pathName)) {
pathName = ConstantsConfig.getString("DEFALTUPLOADPATH");
}
List<Object> uploadPathNames = ConstantsConfig.getList("UPLOADPATHNAMES");
boolean flag = false;
for (int i = 0; i < uploadPathNames.size(); i++) {
if (pathName.equals(uploadPathNames.get(i))) {
flag = true;
}
}
if (!flag) {
Log.info(loghead + "上傳失敗:上傳路徑無效");
return new Result(900001, "", "上傳失敗:上傳路徑無效");
}
String fileName = file.getOriginalFilename();
// 獲取上傳副檔名
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length());
// 對副檔名進行小寫轉換
fileExt = fileExt.toLowerCase();
// 圖片檔案大小過濾
if (!"jpg".equals(fileExt) && !"jpeg".equals(fileExt) && !"png".equals(fileExt) && !"bmp".equals(fileExt)
&& !"gif".equals(fileExt)) {
Log.info(loghead + "上傳失敗:無效圖片檔案型別");
return new Result(900001, "", "上傳失敗:無效圖片檔案型別");
}
long fileSize = file.getSize();
Log.info(loghead + "fileInfo:fileName=" + fileName + "&fileSize=" + fileSize);
if (fileSize <= 0) {
Log.info(loghead + "上傳失敗:檔案為空");
return new Result(900001, "", "上傳失敗:檔案為空");
} else if (fileSize > (500 * 1024)) {
Log.info(loghead + "上傳失敗:檔案大小不能超過500K");
return new Result(900001, "", "上傳失敗:檔案大小不能超過500K");
}
File tmpFile = null;
// 判斷檔案是否為空
if (!file.isEmpty()) {
String uploadPath = request.getSession().getServletContext().getRealPath("/") + "/upload/";
File uploadDir = new File(uploadPath);
if (uploadDir.exists() && uploadDir.isDirectory()) {
String[] childFileNameList = uploadDir.list();
if (childFileNameList != null) {
File temp;
for (int i = 0; i < childFileNameList.length; i++) {
temp = new File(uploadPath + childFileNameList[i]);
if (temp.isFile()) {
temp.delete();
}
}
}
} else {
uploadDir.mkdir();
}
try {
Date now = new Date();
String tmpFileName = String.valueOf(now.getTime()) + Math.round(Math.random() * 1000) + "." + fileExt;
// 檔案儲存路徑
String tmpFilePath = uploadPath + tmpFileName;
tmpFile = new File(tmpFilePath);
file.transferTo(tmpFile);
BufferedImage sourceImg = ImageIO.read(new FileInputStream(tmpFile));
int imgWidth = sourceImg.getWidth();
int imgHeight = sourceImg.getHeight();
System.out.println("上傳的圖片寬：" + imgWidth);
System.out.println("上傳的圖片高：" + imgHeight);
// 圖片檔案尺寸過濾
if (sizeRule == null) {
// 上傳到圖片伺服器
String imgUrl = Upload.upload(tmpFile, "/" + pathName + "/");
json.put("fileName", fileName);
json.put("url", imgUrl);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
return new Result(0, json, "success");
} else {
System.out.println("前端選擇圖片尺寸規則" + sizeRule);
int ruleWidth = 0;
int ruleHeight = 0;
try {
String imgSizeRule = ConstantsConfig.getString("UPLOADIMG_RULE" + sizeRule);
String imgSizeRule_width_height[] = imgSizeRule.split(",");
String imgSizeRule_width = imgSizeRule_width_height[0];
String imgSizeRule_height = imgSizeRule_width_height[1];
ruleWidth = Integer.parseInt(imgSizeRule_width);
ruleHeight = Integer.parseInt(imgSizeRule_height);
} catch (Exception e) {
System.out.println("沒有配置尺寸規則" + sizeRule);
json.put("fileName", fileName);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
return new Result(-1, json, "配置系統沒有配置上傳圖片尺寸規則" + sizeRule
+ ",請前端修改引數sizeRule值或管理員在配置系統配置sizeRule" + sizeRule + "規則對應的配置項");
}
if (isDeviation == null) {
System.out.println("嚴格限制圖片尺寸");
if (ruleWidth == imgWidth && ruleHeight == imgHeight) {
String imgUrl = Upload.upload(tmpFile, "/" + pathName + "/");
json.put("fileName", fileName);
json.put("url", imgUrl);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
return new Result(0, json, "success");
} else {
json.put("fileName", fileName);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
json.put("ruleWidth", ruleWidth);
json.put("ruleHeight", ruleHeight);
return new Result(-1, json, "請上傳" + ruleWidth + "*" + ruleHeight + "px的圖片");
}
} else {
int deviation = Integer.parseInt(ConstantsConfig.getString("UPLOADIMG_DEVIATION"));
System.out.println("允許尺寸誤差在" + deviation + "以內");
if (Math.abs(ruleWidth - imgWidth) <= deviation
&& Math.abs(ruleHeight - imgHeight) <= deviation) {
String imgUrl = Upload.upload(tmpFile, "/" + pathName + "/");
json.put("fileName", fileName);
json.put("url", imgUrl);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
return new Result(0, json, "success");
} else {
json.put("fileName", fileName);
json.put("imgWidth", imgWidth);
json.put("imgHeight", imgHeight);
json.put("ruleWidth", ruleWidth);
json.put("ruleHeight", ruleHeight);
return new Result(-1, json, "請上傳" + ruleWidth + "*" + ruleHeight + "px的圖片");
}
}
}
} catch (Exception e) {
e.printStackTrace();
Log.info(loghead + "上傳失敗:檔案上傳失敗");
return new Result(900001, "", "上傳失敗:檔案上傳異常");
} finally {
// 刪除臨時檔案
if (tmpFile.exists()) {
tmpFile.deleteOnExit();
Log.info(loghead + "刪除臨時檔案" + tmpFile.getAbsolutePath());
}
}
}
return new Result(-1, json, "後臺校驗上傳圖片流程異常");
}
}