OSS上传学习笔记/转载mall

本文主要讲解mall整合OSS实现文件上传的过程，采用的是服务端签名后前端直传的方式。

OSS

阿里云对象存储服务（Object Storage Service，简称 OSS），是阿里云提供的海量、安全、低成本、高可靠的云存储服务。OSS可用于图片、音视频、日志等海量文件的存储。各种终端设备、Web网站程序、移动应用可以直接向OSS写入或读取数据。

OSS中的相关概念

• Endpoint：访问域名，通过该域名可以访问OSS服务的API，进行文件上传、下载等操作。
• Bucket：存储空间，是存储对象的容器，所有存储对象都必须隶属于某个存储空间。
• Object：对象，对象是 OSS 存储数据的基本单元，也被称为 OSS 的文件。
• AccessKey：访问密钥，指的是访问身份验证中用到的 AccessKeyId 和 AccessKeySecret。

OSS的相关设置

开通OSS服务

• 登录阿里云官网；
• 将鼠标移至产品标签页，单击对象存储 OSS，打开OSS 产品详情页面；
• 在OSS产品详情页，单击立即开通。

创建存储空间

• 点击网页右上角控制台按钮进入控制台

 

• 选择我的云产品中的对象存储OSS

• 点击左侧存储空间的加号新建存储空间

• 新建存储空间并设置读写权限为公共读

跨域资源共享（CORS）的设置

由于浏览器处于安全考虑，不允许跨域资源访问，所以我们要设置OSS的跨域资源共享。

• 选择一个存储空间，打开其基础设置

• 点击跨越设置的设置按钮

• 点击创建规则

• 进行跨域规则设置

服务端签名后前端直传的相关说明

流程示例图

流程介绍

1. Web前端请求应用服务器，获取上传所需参数（如OSS的accessKeyId、policy、callback等参数）
2. 应用服务器返回相关参数
3. Web前端直接向OSS服务发起上传文件请求
4. 等上传完成后OSS服务会回调应用服务器的回调接口
5. 应用服务器返回响应给OSS服务
6. OSS服务将应用服务器回调接口的内容返回给Web前端

整合OSS实现文件上传

在pom.xml中添加相关依赖

<!-- OSS SDK 相关依赖 -->
<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>2.5.0</version>
</dependency>Copy to clipboardErrorCopied

修改SpringBoot配置文件

修改application.yml文件，添加OSS相关配置。

注意：endpoint、accessKeyId、accessKeySecret、bucketName、callback、prefix都要改为你自己帐号OSS相关的，callback需要是公网可以访问的地址。

# OSS相关配置信息
aliyun:
  oss:
    endpoint: oss-cn-shenzhen.aliyuncs.com # oss对外服务的访问域名
    accessKeyId: test # 访问身份验证中用到用户标识
    accessKeySecret: test # 用户用于加密签名字符串和oss用来验证签名字符串的密钥
    bucketName: macro-oss # oss的存储空间
    policy:
      expire: 300 # 签名有效期(S)
    maxSize: 10 # 上传文件大小(M)
    callback: http://localhost:8080/aliyun/oss/callback # 文件上传成功后的回调地址
    dir:
      prefix: mall/images/ # 上传文件夹路径前缀Copy to clipboardErrorCopied

添加OSS的相关Java配置

用于配置OSS的连接客户端OSSClient。

package com.macro.mall.tiny.config;
import com.aliyun.oss.OSSClient;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;
/**

Created by macro on 2018/5/17.

*/

@Configuration

public class OssConfig {

@Value("\({aliyun.oss.endpoint}"<span class="token punctuation">)
 <span class="token keyword">private <span class="token class-name">String ALIYUN_OSS_ENDPOINT<span class="token punctuation">;
 <span class="token annotation punctuation">@Value<span class="token punctuation">(<span class="token string">"\){aliyun.oss.accessKeyId}")

private String ALIYUN_OSS_ACCESSKEYID;

@Value("${aliyun.oss.accessKeySecret}")

private String ALIYUN_OSS_ACCESSKEYSECRET;

@Bean

public OSSClient ossClient(){

return new OSSClient(ALIYUN_OSS_ENDPOINT,ALIYUN_OSS_ACCESSKEYID,ALIYUN_OSS_ACCESSKEYSECRET);

}

}Copy to clipboardErrorCopied

添加OSS上传策略封装对象OssPolicyResult

前端直接上传文件时所需参数，从后端返回过来。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


获取OSS上传文件授权返回结果


Created by macro on 2018/5/17.

*/

public class OssPolicyResult {

@ApiModelProperty("访问身份验证中用到用户标识")

private String accessKeyId;

@ApiModelProperty("用户表单上传的策略,经过base64编码过的字符串")

private String policy;

@ApiModelProperty("对policy签名后的字符串")

private String signature;

@ApiModelProperty("上传文件夹路径前缀")

private String dir;

@ApiModelProperty("oss对外服务的访问域名")

private String host;

@ApiModelProperty("上传成功后的回调设置")

private String callback;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

添加OSS上传成功后的回调参数对象OssCallbackParam

当OSS上传成功后，会根据该配置参数来回调对应接口。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


oss上传成功后的回调参数


Created by macro on 2018/5/17.

*/

public class OssCallbackParam {

@ApiModelProperty("请求的回调地址")

private String callbackUrl;

@ApiModelProperty("回调是传入request中的参数")

private String callbackBody;

@ApiModelProperty("回调时传入参数的格式，比如表单提交形式")

private String callbackBodyType;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

OSS上传成功后的回调结果对象OssCallbackResult

回调接口中返回的数据对象，封装了上传文件的信息。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


oss上传文件的回调结果


Created by macro on 2018/5/17.

*/

public class OssCallbackResult {

@ApiModelProperty("文件名称")

private String filename;

@ApiModelProperty("文件大小")

private String size;

@ApiModelProperty("文件的mimeType")

private String mimeType;

@ApiModelProperty("图片文件的宽")

private String width;

@ApiModelProperty("图片文件的高")

private String height;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

添加OSS业务接口OssService

package com.macro.mall.tiny.service;
import com.macro.mall.tiny.dto.OssCallbackResult;

import com.macro.mall.tiny.dto.OssPolicyResult;
import javax.servlet.http.HttpServletRequest;
/**


oss上传管理Service


Created by macro on 2018/5/17.

/

public interface OssService {

/*

oss上传策略生成

*/

OssPolicyResult policy();

/**

oss上传成功回调

*/

OssCallbackResult callback(HttpServletRequest request);

}

Copy to clipboardErrorCopied

添加OSS业务接口OssService的实现类OssServiceImpl

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;
/**


oss上传管理Service实现类


Created by macro on 2018/5/17.

*/

@Service

public class OssServiceImpl implements OssService {
private static final Logger LOGGER = LoggerFactory.getLogger(OssServiceImpl.class);

@Value("\({aliyun.oss.policy.expire}"<span class="token punctuation">)
 <span class="token keyword">private <span class="token keyword">int ALIYUN_OSS_EXPIRE<span class="token punctuation">;
 <span class="token annotation punctuation">@Value<span class="token punctuation">(<span class="token string">"\){aliyun.oss.maxSize}")

private int ALIYUN_OSS_MAX_SIZE;

@Value("\({aliyun.oss.callback}"<span class="token punctuation">)
 <span class="token keyword">private <span class="token class-name">String ALIYUN_OSS_CALLBACK<span class="token punctuation">;
 <span class="token annotation punctuation">@Value<span class="token punctuation">(<span class="token string">"\){aliyun.oss.bucketName}")

private String ALIYUN_OSS_BUCKET_NAME;

@Value("\({aliyun.oss.endpoint}"<span class="token punctuation">)
 <span class="token keyword">private <span class="token class-name">String ALIYUN_OSS_ENDPOINT<span class="token punctuation">;
 <span class="token annotation punctuation">@Value<span class="token punctuation">(<span class="token string">"\){aliyun.oss.dir.prefix}")

private String ALIYUN_OSS_DIR_PREFIX;
@Autowired

private OSSClient ossClient;
/**

签名生成

/

@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=\({object}&amp;size=\){size}&mimeType=\({mimeType}&amp;height=\){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;

}


}

Copy to clipboardErrorCopied

添加OssController定义接口

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;
/**


Oss相关操作接口


Created by macro on 2018/4/26.

*/

@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<OssPolicyResult> 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<OssCallbackResult> callback(HttpServletRequest request) {

OssCallbackResult ossCallbackResult = ossService.callback(request);

return CommonResult.success(ossCallbackResult);

}


}

Copy to clipboardErrorCopied

进行接口测试

测试获取上传策略的接口

启动mall-admin-web前端项目来测试上传接口

• 如何启动前端项目，具体参考该项目的readme文档：https://github.com/macrozheng/mall-admin-web

• 点击添加商品品牌的上传按钮进行测试

• 会调用两次请求，第一次访问本地接口获取上传的策略

• 第二次调用oss服务 的接口进行文件上传

• 可以看到上面接口调用并没有传入回调参数callback,所以接口返回了204 no content,这次我们传入回调参数callback试试，可以发现oss服务回调了我们自己定义的回调接口，并返回了相应结果。

项目源码地址

https://github.com/macrozheng/mall-learning/tree/master/mall-tiny-09

参考资料

• 开通OSS服务：https://help.aliyun.com/document_detail/31884.html?spm=a2c4g.11186623.6.566.74b87eaebrfQno

• 创建存储空间：https://help.aliyun.com/document_detail/31885.html?spm=a2c4g.11186623.6.567.496228bcVZUZqB

• 跨域资源共享（CORS）:https://help.aliyun.com/document_detail/31928.html?spm=5176.11065259.1996646101.searchclickresult.4d1a5607Pf3e9i

• 服务端签名直传并设置上传回调:https://help.aliyun.com/document_detail/31927.html?spm=a2c4g.11186623.6.1268.2c256506mNqV1t

本文主要讲解mall整合OSS实现文件上传的过程，采用的是服务端签名后前端直传的方式。

OSS

阿里云对象存储服务（Object Storage Service，简称 OSS），是阿里云提供的海量、安全、低成本、高可靠的云存储服务。OSS可用于图片、音视频、日志等海量文件的存储。各种终端设备、Web网站程序、移动应用可以直接向OSS写入或读取数据。

OSS中的相关概念

• Endpoint：访问域名，通过该域名可以访问OSS服务的API，进行文件上传、下载等操作。
• Bucket：存储空间，是存储对象的容器，所有存储对象都必须隶属于某个存储空间。
• Object：对象，对象是 OSS 存储数据的基本单元，也被称为 OSS 的文件。
• AccessKey：访问密钥，指的是访问身份验证中用到的 AccessKeyId 和 AccessKeySecret。

OSS的相关设置

开通OSS服务

• 登录阿里云官网；
• 将鼠标移至产品标签页，单击对象存储 OSS，打开OSS 产品详情页面；
• 在OSS产品详情页，单击立即开通。

创建存储空间

• 点击网页右上角控制台按钮进入控制台

• 选择我的云产品中的对象存储OSS

• 点击左侧存储空间的加号新建存储空间

• 新建存储空间并设置读写权限为公共读

跨域资源共享（CORS）的设置

由于浏览器处于安全考虑，不允许跨域资源访问，所以我们要设置OSS的跨域资源共享。

• 选择一个存储空间，打开其基础设置

• 点击跨越设置的设置按钮

• 点击创建规则

• 进行跨域规则设置

服务端签名后前端直传的相关说明

流程示例图

流程介绍

1. Web前端请求应用服务器，获取上传所需参数（如OSS的accessKeyId、policy、callback等参数）
2. 应用服务器返回相关参数
3. Web前端直接向OSS服务发起上传文件请求
4. 等上传完成后OSS服务会回调应用服务器的回调接口
5. 应用服务器返回响应给OSS服务
6. OSS服务将应用服务器回调接口的内容返回给Web前端

整合OSS实现文件上传

在pom.xml中添加相关依赖

<!-- OSS SDK 相关依赖 -->
<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>2.5.0</version>
</dependency>Copy to clipboardErrorCopied

修改SpringBoot配置文件

修改application.yml文件，添加OSS相关配置。

注意：endpoint、accessKeyId、accessKeySecret、bucketName、callback、prefix都要改为你自己帐号OSS相关的，callback需要是公网可以访问的地址。

# OSS相关配置信息
aliyun:
  oss:
    endpoint: oss-cn-shenzhen.aliyuncs.com # oss对外服务的访问域名
    accessKeyId: test # 访问身份验证中用到用户标识
    accessKeySecret: test # 用户用于加密签名字符串和oss用来验证签名字符串的密钥
    bucketName: macro-oss # oss的存储空间
    policy:
      expire: 300 # 签名有效期(S)
    maxSize: 10 # 上传文件大小(M)
    callback: http://localhost:8080/aliyun/oss/callback # 文件上传成功后的回调地址
    dir:
      prefix: mall/images/ # 上传文件夹路径前缀Copy to clipboardErrorCopied

添加OSS的相关Java配置

用于配置OSS的连接客户端OSSClient。

package com.macro.mall.tiny.config;
import com.aliyun.oss.OSSClient;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;
/**

Created by macro on 2018/5/17.

*/

@Configuration

public class OssConfig {

@Value("\({aliyun.oss.endpoint}"</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">)</span>
 <span class="token keyword" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: #e96900;">private</span> <span class="token class-name" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">String</span> ALIYUN_OSS_ENDPOINT<span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">;</span>
 <span class="token annotation punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">@Value</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">(</span><span class="token string" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: var(--theme-color,#42b983);">"\){aliyun.oss.accessKeyId}")

private String ALIYUN_OSS_ACCESSKEYID;

@Value("${aliyun.oss.accessKeySecret}")

private String ALIYUN_OSS_ACCESSKEYSECRET;

@Bean

public OSSClient ossClient(){

return new OSSClient(ALIYUN_OSS_ENDPOINT,ALIYUN_OSS_ACCESSKEYID,ALIYUN_OSS_ACCESSKEYSECRET);

}

}Copy to clipboardErrorCopied

添加OSS上传策略封装对象OssPolicyResult

前端直接上传文件时所需参数，从后端返回过来。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


获取OSS上传文件授权返回结果


Created by macro on 2018/5/17.

*/

public class OssPolicyResult {

@ApiModelProperty("访问身份验证中用到用户标识")

private String accessKeyId;

@ApiModelProperty("用户表单上传的策略,经过base64编码过的字符串")

private String policy;

@ApiModelProperty("对policy签名后的字符串")

private String signature;

@ApiModelProperty("上传文件夹路径前缀")

private String dir;

@ApiModelProperty("oss对外服务的访问域名")

private String host;

@ApiModelProperty("上传成功后的回调设置")

private String callback;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

添加OSS上传成功后的回调参数对象OssCallbackParam

当OSS上传成功后，会根据该配置参数来回调对应接口。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


oss上传成功后的回调参数


Created by macro on 2018/5/17.

*/

public class OssCallbackParam {

@ApiModelProperty("请求的回调地址")

private String callbackUrl;

@ApiModelProperty("回调是传入request中的参数")

private String callbackBody;

@ApiModelProperty("回调时传入参数的格式，比如表单提交形式")

private String callbackBodyType;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

OSS上传成功后的回调结果对象OssCallbackResult

回调接口中返回的数据对象，封装了上传文件的信息。

package com.macro.mall.tiny.dto;
import io.swagger.annotations.ApiModelProperty;
/**


oss上传文件的回调结果


Created by macro on 2018/5/17.

*/

public class OssCallbackResult {

@ApiModelProperty("文件名称")

private String filename;

@ApiModelProperty("文件大小")

private String size;

@ApiModelProperty("文件的mimeType")

private String mimeType;

@ApiModelProperty("图片文件的宽")

private String width;

@ApiModelProperty("图片文件的高")

private String height;
//省略了所有getter,setter方法

}

Copy to clipboardErrorCopied

添加OSS业务接口OssService

package com.macro.mall.tiny.service;
import com.macro.mall.tiny.dto.OssCallbackResult;

import com.macro.mall.tiny.dto.OssPolicyResult;
import javax.servlet.http.HttpServletRequest;
/**


oss上传管理Service


Created by macro on 2018/5/17.

/

public interface OssService {

/*

oss上传策略生成

*/

OssPolicyResult policy();

/**

oss上传成功回调

*/

OssCallbackResult callback(HttpServletRequest request);

}

Copy to clipboardErrorCopied

添加OSS业务接口OssService的实现类OssServiceImpl

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;
/**


oss上传管理Service实现类


Created by macro on 2018/5/17.

*/

@Service

public class OssServiceImpl implements OssService {
private static final Logger LOGGER = LoggerFactory.getLogger(OssServiceImpl.class);

@Value("\({aliyun.oss.policy.expire}"</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">)</span>
 <span class="token keyword" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: #e96900;">private</span> <span class="token keyword" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: #e96900;">int</span> ALIYUN_OSS_EXPIRE<span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">;</span>
 <span class="token annotation punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">@Value</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">(</span><span class="token string" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: var(--theme-color,#42b983);">"\){aliyun.oss.maxSize}")

private int ALIYUN_OSS_MAX_SIZE;

@Value("\({aliyun.oss.callback}"</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">)</span>
 <span class="token keyword" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: #e96900;">private</span> <span class="token class-name" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">String</span> ALIYUN_OSS_CALLBACK<span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">;</span>
 <span class="token annotation punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">@Value</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">(</span><span class="token string" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: var(--theme-color,#42b983);">"\){aliyun.oss.bucketName}")

private String ALIYUN_OSS_BUCKET_NAME;

@Value("\({aliyun.oss.endpoint}"</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">)</span>
 <span class="token keyword" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: #e96900;">private</span> <span class="token class-name" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">String</span> ALIYUN_OSS_ENDPOINT<span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">;</span>
 <span class="token annotation punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">@Value</span><span class="token punctuation" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto;">(</span><span class="token string" style="-webkit-font-smoothing: initial; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); text-size-adjust: none; box-sizing: border-box; min-height: 1.5rem; position: relative; left: auto; color: var(--theme-color,#42b983);">"\){aliyun.oss.dir.prefix}")

private String ALIYUN_OSS_DIR_PREFIX;
@Autowired

private OSSClient ossClient;
/**

签名生成

/

@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=\({object}&amp;size=\){size}&mimeType=\({mimeType}&amp;height=\){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;

}


}

Copy to clipboardErrorCopied

添加OssController定义接口

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;
/**


Oss相关操作接口


Created by macro on 2018/4/26.

*/

@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<OssPolicyResult> 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<OssCallbackResult> callback(HttpServletRequest request) {

OssCallbackResult ossCallbackResult = ossService.callback(request);

return CommonResult.success(ossCallbackResult);

}


}

Copy to clipboardErrorCopied

进行接口测试

测试获取上传策略的接口

启动mall-admin-web前端项目来测试上传接口

• 如何启动前端项目，具体参考该项目的readme文档：https://github.com/macrozheng/mall-admin-web

• 点击添加商品品牌的上传按钮进行测试

• 会调用两次请求，第一次访问本地接口获取上传的策略

• 第二次调用oss服务 的接口进行文件上传

• 可以看到上面接口调用并没有传入回调参数callback,所以接口返回了204 no content,这次我们传入回调参数callback试试，可以发现oss服务回调了我们自己定义的回调接口，并返回了相应结果。

项目源码地址

https://github.com/macrozheng/mall-learning/tree/master/mall-tiny-09

参考资料

• 开通OSS服务：https://help.aliyun.com/document_detail/31884.html?spm=a2c4g.11186623.6.566.74b87eaebrfQno

• 创建存储空间：https://help.aliyun.com/document_detail/31885.html?spm=a2c4g.11186623.6.567.496228bcVZUZqB

• 跨域资源共享（CORS）:https://help.aliyun.com/document_detail/31928.html?spm=5176.11065259.1996646101.searchclickresult.4d1a5607Pf3e9i

• 服务端签名直传并设置上传回调:https://help.aliyun.com/document_detail/31927.html?spm=a2c4g.11186623.6.1268.2c256506mNqV1t