✅P63_品牌管理-获取服务端签名

gong_yz大约 4 分钟谷粒商城

新建第三方服务模块

创建模块

New Moudle：cfmall-third-party

勾选“Web”和“OpenFeign”：

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>4.0.0</modelVersion>
    <groupId>com.gyz.cfmall</groupId>
    <artifactId>cfmall-third-party</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>cfmall-third-party</name>
    <description>第三方服务</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR3</spring-cloud.version>
    </properties>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/com.aliyun.oss/aliyun-sdk-oss -->
        <dependency>
            <groupId>com.aliyun.oss</groupId>
            <artifactId>aliyun-sdk-oss</artifactId>
            <version>3.5.0</version>
        </dependency>
        <dependency>
            <groupId>com.gyz.cfmall</groupId>
            <artifactId>cfmall-common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
            <exclusions>
                <exclusion>
                    <groupId>com.baomidou</groupId>
                    <artifactId>mybatis-plus-boot-starter</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--spring cloud alibaba 2.1.0.RELEASE-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.1.0.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

application.yml

server:
  port: 8300

spring:
  application:
    name: cfmall-third-party
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
    alicloud:
      access-key: 填写自己的AccessKey ID # AccessKey ID
      secret-key: 填写自己的AccessKey Secret # AccessKey Secret
      oss:
        endpoint: oss-cn-beijing.aliyuncs.com # 阿里云OSS查看自己的region

bootstrap.properties

spring.cloud.nacos.config.server-addr=127.0.0.1:8848
spring.cloud.nacos.config.namespace=7e048826-c448-47c7-92e0-e2ff5ed54f8c

# 指明dataId
spring.cloud.nacos.config.extension-configs[0].data-id=oss.yml
# 分组设置，默认组即可
spring.cloud.nacos.config.extension-configs[0].group=DEFAULT_GROUP
# 是否自动刷新配置信息
spring.cloud.nacos.config.extension-configs[0].refresh=true

Nacos新建命名空间并配置

新建命名空间

新增配置内容

spring:
  cloud:
    alicloud:
      access-key: AccessKey ID # 填写自己的AccessKey ID
      secret-key: AccessKey Secret #填写自己的AccessKey Secret
      oss:
        endpoint: oss-cn-beijing.aliyuncs.com

注意：将 cfmall-product 模块的application.yml中oss配置去掉！

获取服务端签名

服务端签名后直传

代码示例官方地址open in new window：应用服务器核心代码解析

OssController.java：

@Autowired OSS ossClient; ossClient始终为null，识别不到，改用 new OSSClientBuilder().build(xxx)构造

package com.gyz.cfmall.thirdparty.controller;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.model.MatchMode;
import com.aliyun.oss.model.PolicyConditions;
import com.gyz.common.utils.R;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * @Description
 * @Author GongYuZhuo
 * @Version 1.0.0
 */
@RestController
public class OssController {

//    @Autowired(required = false)
//    OSS ossClient;

    @Value("${spring.cloud.alicloud.oss.endpoint}")
    private String endpoint;
    @Value("${spring.cloud.alicloud.oss.bucket}")
    private String bucket;
    @Value("${spring.cloud.alicloud.access-key}")
    private String accessId;
    @Value("${spring.cloud.alicloud.secret-key}")
    private String accessKey;

    /**
     * Oss 获取服务端签名
     *
     * @return
     */
    @RequestMapping("/oss/policy")
    public R policy() {

        // https://cfmall-hello.oss-cn-beijing.aliyuncs.com/center.jpg  host的格式为 bucketname.endpoint
        String host = "https://" + bucket + "." + 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 format = new SimpleDateFormat("yyyy-MM-dd").format(new Date());
        // 用户上传文件时指定的前缀。
        String dir = format + "/";

        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessId, accessKey);
        Map<String, String> respMap = null;
        try {
            long expireTime = 30;
            long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
            Date expiration = new Date(expireEndTime);
            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(StandardCharsets.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());
        }

        return R.ok().put("data", respMap);
    }
}

启动类 CfmallThirdPartyApplication.java 加上服务注册发现注解：@EnableDiscoveryClient

@SpringBootApplication
@EnableDiscoveryClient
public class CfmallThirdPartyApplication {

    public static void main(String[] args) {
        SpringApplication.run(CfmallThirdPartyApplication.class, args);
    }

}

接口测试：http://localhost:8300/oss/policyopen in new window

配置网关路由

在cfmall-gateway模块 application.yml 文件中新增第三方服务访问路由

spring:
  cloud:
    gateway:
      routes:
        # 见官方文档：https://cloud.tencent.com/developer/article/1403887
        - id: third-party_route
          uri: lb://cfmall-third-party
          predicates:
            - Path=/api/thirdparty/**
          filters:
            - RewritePath=/api/thirdparty/(?<segment>/?.*),/$\{segment}

测试

测试生成的服务签名数据：

获取对象存储的服务端签名数据

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