macservice/src/main/java/com/minpay/shouhuo/system/FileManageAction.java

package com.minpay.shouhuo.system;

import com.min.util.CommonUtil;
import com.minpay.common.exception.BusinessCodeException;
import com.minpay.common.service.IPublicService;
import com.startup.minpay.frame.business.IMINAction;
import com.startup.minpay.frame.business.MINHttpServletRequestContext;
import com.startup.minpay.frame.business.res.MINActionResult;
import com.startup.minpay.frame.exception.MINBusinessException;
import com.startup.minpay.frame.service.base.Service;
import com.startup.minpay.frame.target.MINAction;
import com.startup.minpay.frame.target.MINComponent;
import com.startup.minpay.frame.target.MINParam;
import com.startup.minpay.util.Log;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.lang.StringUtils;
import org.json.JSONObject;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 文件上传公共接口
 * 
 * @author ZHANGZZ
 *
 */
@MINComponent
public class FileManageAction implements IMINAction {

	private final static String UPLOAD_BYBYTES = "uploadByBytes";

	private final static String UPLOAD_FILE = "uploadFile";

	/**
	 * 
	 * @param MINRequest
	 * @param fileType   文件类型00图片01文档02视频
	 * @param response
	 * @param size       文件大小
	 * @param proportion 图片宽高比区间 格式最小区间,最大区间 例如 1.50,1.80
	 * @return
	 * @throws MINBusinessException
	 */
	@MINAction(value = UPLOAD_FILE, session = false)
	public MINActionResult uploadFile(MINHttpServletRequestContext MINRequest,
                                      @MINParam(key = "fileFiledId") String fileFiledId, @MINParam(key = "fileType") String fileType,
                                      @MINParam(key = "size") int size, @MINParam(key = "proportion") String proportion,
                                      HttpServletResponse response) throws MINBusinessException {
		MINActionResult res = new MINActionResult();

		if (StringUtils.isEmpty(fileFiledId)) {
			fileFiledId = "file";
		}

		FileItem file = MINRequest.getFile(fileFiledId);

		// 判断文件大小上传抛出异常
		Log.info("文件大小：" + String.valueOf((file.getSize() / 1024D / 1024D)) + "M");
		if (size > 0 && (1024L * 1024L * size) < file.getSize()) {
			throw new MINBusinessException("请上传小于" + String.valueOf(size) + "M的文件");
		}
		if (size < 0) {
			throw new MINBusinessException("size参数异常，size不能小于0");
		}

		Map<String, Object> map = Service.lookup(IPublicService.class).uploadFile(file, fileType, 0, true);

		if ("00".equals(fileType) && !CommonUtil.isEmpty(proportion)) {
			double minRatio = -1;
			double maxRatio = -1;
			String[] proportions = null;
			if (proportion != null && !proportion.isEmpty()) {
				// 截取参数 图片的宽高比
				proportions = proportion.split(",");
				minRatio = Double.parseDouble(proportions[0].trim());
				maxRatio = Double.parseDouble(proportions[1].trim());
			}
			// 获取宽高
			Double width = (Double) map.get("width");
			Double height = (Double) map.get("height");
			// 判断宽高比是否符合规定
			Double ratio = width / height;
			Log.info("上传图片宽高比：" + String.valueOf(ratio));
			if (ratio < minRatio || ratio > maxRatio) {
				throw new MINBusinessException(
						"请上传宽高比" + proportions[0].trim() + "到" + proportions[1].trim() + "之间的图片");
			}
		}

		String url = (String) map.get("url");

		JSONObject js = new JSONObject();
		js.put("src", url);// 获取图片路径

		res.set("code", 0);
		res.set("msg", "");
		res.set("data", js);
		return res;
	}

}