OSS对象存储-文件上传
一、 概述
上传文件采用的方法是：
服务端签名后直传-----Web端向服务端请求签名，然后直接上传，不会对服务端产生压力，而且安全可靠
二、执行流程
- 封装上传功能的组件
<template>
<div>
<el-upload
action="http://jobseeker.oss-cn-shanghai.aliyuncs.com"
:data="dataObj"
list-type="picture"
:multiple="false"
:show-file-list="showFileList"
:file-list="fileList"
:before-upload="beforeUpload"
:on-remove="handleRemove"
:on-success="handleUploadSuccess"
:on-preview="handlePreview"
>
<el-button size="small" type="primary">点击上传el-button>
<div slot="tip" class="el-upload__tip">
只能上传jpg/png文件，且不超过10MB
div>
el-upload>
<el-dialog :visible.sync="dialogVisible">
<img width="100%" :src="fileList[0].url" alt="" />
el-dialog>
div>
template>
<script>
import { policy } from "./policy";
import { getUUID } from "@/utils";
export default {
name: "singleUpload",
props: {
value: String,
},
computed: {
imageUrl() {
return this.value;
},
imageName() {
if (this.value != null && this.value !== "") {
return this.value.substr(this.value.lastIndexOf("/") + 1);
} else {
return null;
}
},
fileList() {
return [
{
name: this.imageName,
url: this.imageUrl,
},
];
},
showFileList: {
get: function () {
return (
this.value !== null && this.value !== "" && this.value !== undefined
);
},
set: function (newValue) {},
},
},
data() {
return {
dataObj: {
policy: "",
signature: "",
key: "",
ossaccessKeyId: "",
dir: "",
host: "",
// callback:'',
},
dialogVisible: false,
};
},
methods: {
emitInput(val) {
this.$emit("input", val);
},
handleRemove(file, fileList) {
this.emitInput("");
},
handlePreview(file) {
this.dialogVisible = true;
},
beforeUpload(file) {
let _self = this;
return new Promise((resolve, reject) => {
policy()
.then((response) => {
_self.dataObj.policy = response.data.policy;
_self.dataObj.signature = response.data.signature;
_self.dataObj.ossaccessKeyId = response.data.accessid;
_self.dataObj.key = response.data.dir + getUUID() + "_${filename}";
_self.dataObj.dir = response.data.dir;
_self.dataObj.host = response.data.host;
resolve(true);
})
.catch((err) => {
reject(false);
});
});
},
handleUploadSuccess(res, file) {
console.log("上传成功...");
this.showFileList = true;
this.fileList.pop();
this.fileList.push({
name: file.name,
url:
this.dataObj.host +
"/" +
this.dataObj.key.replace("${filename}", file.name),
});
this.emitInput(this.fileList[0].url);
},
},
};
script>
<style>
style>
// policy.js 发送请求
import http from '@/utils/httpRequest.js'
export function policy() {
return new Promise((resolve,reject)=>{
http({
url: http.adornUrl("/thirdparty/oss/policy"),
method: "get",
params: http.adornParams({})
}).then(({ data }) => {
resolve(data);
})
});
}
效果图
- 配置网关路由转发到第三方服务
- id: third_party_route
uri: lb://gulimall-third-party
predicates:
- Path=/api/thirdparty/**
filters:
- RewritePath=/api/thirdparty/(?>.*),/$\{segment}
- 创建第三方微服务
- 创建微服务模块
- 引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.5.4version>
<relativePath/>
parent>
<groupId>com.rock.gulimallgroupId>
<artifactId>gulimall-third-partyartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>gulimall-third-partyname>
<description>gulimall-third-partydescription>
<properties>
<java.version>11java.version>
<spring-cloud.version>2020.0.3spring-cloud.version>
properties>
<dependencies>
<dependency>
<groupId>com.rock.gulimallgroupId>
<artifactId>gulimall-commonartifactId>
<version>0.0.1-SNAPSHOTversion>
<exclusions>
<exclusion>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
exclusion>
<exclusion>
<groupId>com.baomidougroupId>
<artifactId>mybatis-plus-boot-starterartifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-openfeignartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>com.alibaba.cloudgroupId>
<artifactId>spring-cloud-starter-alicloud-ossartifactId>
dependency>
dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>com.alibaba.cloudgroupId>
<artifactId>spring-cloud-alibaba-dependenciesartifactId>
<version>2.2.0.RELEASEversion>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
- 上线注册中心并配置OSS（application.properties）
# 注册中心
spring.cloud.nacos.discovery.server-addr=192.168.10.88:8848
spring.application.name=gulimall-third-party
# OSS 配置参数
spring.cloud.alicloud.access-key=
spring.cloud.alicloud.secret-key=
spring.cloud.alicloud.oss.endpoint=oss-cn-shanghai.aliyuncs.com
spring.cloud.alicloud.oss.bucket=jobseeker
# 端口号
server.port=30000
- 上线配置中心（bootstrap.properties）
spring.cloud.nacos.config.server-addr=192.168.10.88:8848
spring.application.name=gulimall-third-party
效果图
- 获取签名
@RestController
@RequestMapping("/oss")
public class OssController {
@Resource
OSS ossClient;
@Value("${spring.cloud.alicloud.oss.endpoint}")
private String endpoint;
@Value("${spring.cloud.alicloud.oss.bucket}")
private String bucket;
@Value("${spring.cloud.alicloud.access-key}")
private String accessId;
@RequestMapping("/policy")
public R policy(){
String host = "https://" + bucket + "." + endpoint; // host的格式为 bucketname.endpoint
// callbackUrl为上传回调服务器的URL，请将下面的IP和Port配置为您自己的真实信息。
// String callbackUrl = "http://88.88.88.88:8888";
String dir = new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + "/"; // 用户上传文件时指定的前缀。
Map<String, String> respMap = null;
try {
long expireTime = 30;
long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
Date expiration = new Date(expireEndTime);
// PostObject请求最大可支持的文件大小为5 GB，即CONTENT_LENGTH_RANGE为5*1024*1024*1024。
PolicyConditions policyConds = new PolicyConditions();
policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, 1048576000);
policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir);
String postPolicy = ossClient.generatePostPolicy(expiration, policyConds);
byte[] binaryData = postPolicy.getBytes("utf-8");
String encodedPolicy = BinaryUtil.toBase64String(binaryData);
String postSignature = ossClient.calculatePostSignature(postPolicy);
respMap = new LinkedHashMap<String, String>();
respMap.put("accessid", accessId);
respMap.put("policy", encodedPolicy);
respMap.put("signature", postSignature);
respMap.put("dir", dir);
respMap.put("host", host);
respMap.put("expire", String.valueOf(expireEndTime / 1000));
// respMap.put("expire", formatISO8601Date(expiration));
} catch (Exception e) {
// Assert.fail(e.getMessage());
System.out.println(e.getMessage());
} finally {
ossClient.shutdown();
}
return R.ok().put("data", respMap);
}
}
效果图
