mall整合OSS实现文件上传

package com.macro.mall.tiny.service.impl;

import cn.hutool.json.JSONUtil;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.model.MatchMode;
import com.aliyun.oss.model.PolicyConditions;
import com.macro.mall.tiny.dto.OssCallbackParam;
import com.macro.mall.tiny.dto.OssCallbackResult;
import com.macro.mall.tiny.dto.OssPolicyResult;
import com.macro.mall.tiny.service.OssService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.util.Date;


@Service
public class OssServiceImpl implements OssService {

	private static final Logger LOGGER = LoggerFactory.getLogger(OssServiceImpl.class);
	@Value("${aliyun.oss.policy.expire}")
	private int ALIYUN_OSS_EXPIRE;
	@Value("${aliyun.oss.maxSize}")
	private int ALIYUN_OSS_MAX_SIZE;
	@Value("${aliyun.oss.callback}")
	private String ALIYUN_OSS_CALLBACK;
	@Value("${aliyun.oss.bucketName}")
	private String ALIYUN_OSS_BUCKET_NAME;
	@Value("${aliyun.oss.endpoint}")
	private String ALIYUN_OSS_ENDPOINT;
	@Value("${aliyun.oss.dir.prefix}")
	private String ALIYUN_OSS_DIR_PREFIX;

	@Autowired
	private OSSClient ossClient;

	
	@Override
	public OssPolicyResult policy() {
		OssPolicyResult result = new OssPolicyResult();
		// 存储目录
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		String dir = ALIYUN_OSS_DIR_PREFIX+sdf.format(new Date());
		// 签名有效期
		long expireEndTime = System.currentTimeMillis() + ALIYUN_OSS_EXPIRE * 1000;
		Date expiration = new Date(expireEndTime);
		// 文件大小
		long maxSize = ALIYUN_OSS_MAX_SIZE * 1024 * 1024;
		// 回调
		OssCallbackParam callback = new OssCallbackParam();
		callback.setCallbackUrl(ALIYUN_OSS_CALLBACK);
		callback.setCallbackBody("filename=${object}&size=${size}&mimeType=${mimeType}&height=${imageInfo.height}&width=${imageInfo.width}");
		callback.setCallbackBodyType("application/x-www-form-urlencoded");
		// 提交节点
		String action = "http://" + ALIYUN_OSS_BUCKET_NAME + "." + ALIYUN_OSS_ENDPOINT;
		try {
			PolicyConditions policyConds = new PolicyConditions();
			policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, maxSize);
			policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir);
			String postPolicy = ossClient.generatePostPolicy(expiration, policyConds);
			byte[] binaryData = postPolicy.getBytes("utf-8");
			String policy = BinaryUtil.tobase64String(binaryData);
			String signature = ossClient.calculatePostSignature(postPolicy);
			String callbackData = BinaryUtil.tobase64String(JSONUtil.parse(callback).toString().getBytes("utf-8"));
			// 返回结果
			result.setAccessKeyId(ossClient.getCredentialsProvider().getCredentials().getAccessKeyId());
			result.setPolicy(policy);
			result.setSignature(signature);
			result.setDir(dir);
			result.setCallback(callbackData);
			result.setHost(action);
		} catch (Exception e) {
			LOGGER.error("签名生成失败", e);
		}
		return result;
	}

	@Override
	public OssCallbackResult callback(HttpServletRequest request) {
		OssCallbackResult result= new OssCallbackResult();
		String filename = request.getParameter("filename");
		filename = "http://".concat(ALIYUN_OSS_BUCKET_NAME).concat(".").concat(ALIYUN_OSS_ENDPOINT).concat("/").concat(filename);
		result.setFilename(filename);
		result.setSize(request.getParameter("size"));
		result.setMimeType(request.getParameter("mimeType"));
		result.setWidth(request.getParameter("width"));
		result.setHeight(request.getParameter("height"));
		return result;
	}

}

package com.macro.mall.tiny.controller;


import com.macro.mall.tiny.common.api.CommonResult;
import com.macro.mall.tiny.dto.OssCallbackResult;
import com.macro.mall.tiny.dto.OssPolicyResult;
import com.macro.mall.tiny.service.impl.OssServiceImpl;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;


@Controller
@Api(tags = "OssController", description = "Oss管理")
@RequestMapping("/aliyun/oss")
public class OssController {
    @Autowired
    private OssServiceImpl ossService;

    @ApiOperation(value = "oss上传签名生成")
    @RequestMapping(value = "/policy", method = RequestMethod.GET)
    @ResponseBody
    public CommonResult policy() {
 OssPolicyResult result = ossService.policy();
 return CommonResult.success(result);
    }

    @ApiOperation(value = "oss上传成功回调")
    @RequestMapping(value = "callback", method = RequestMethod.POST)
    @ResponseBody
    public CommonResult callback(HttpServletRequest request) {
 OssCallbackResult ossCallbackResult = ossService.callback(request);
 return CommonResult.success(ossCallbackResult);
    }

}