云南省建设厅网站,房地产集团网站欣赏,做公众号必备的网站,京东云一.阿里云
注册登陆就不讲了#xff0c;登陆进去后如下操作
1.
进入对象存储OSS 创建一个新的Bucket
随后点击新建的bucket 2.去访问RAM
前往RAM控制台 3.去创建用户 4.创建密匙 5.随后返回RAM控制台 给用户增加权限#xff0c;文件上传所需权限#xff0c;需要带含有…一.阿里云
注册登陆就不讲了登陆进去后如下操作
1.
进入对象存储OSS 创建一个新的Bucket
随后点击新建的bucket 2.去访问RAM
前往RAM控制台 3.去创建用户 4.创建密匙 5.随后返回RAM控制台 给用户增加权限文件上传所需权限需要带含有OSS的权限。 6.随后进入用户将自己创建的密匙赋予给该用户目的就是为了更安全 好的到此为止阿里云的配置就完成了windows系统的操作就到此为止了接下来是ideal的操作 二.后台配置
2.1导入依赖 dependencygroupIdcom.aliyun.oss/groupIdartifactIdaliyun-sdk-oss/artifactIdversion3.10.2/version/dependency 2.2所需工具类
ResponseResult
package com.dmdd.javasecuritypractice.util;import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Data;import javax.servlet.http.HttpServletResponse;
import java.io.IOException;/*** 响应数据封装对象*/
Data
public class ResponseResultT {/*** 状态信息*/private ResponseStatus status;/*** 数据*/private T data;public ResponseResult(ResponseStatus status, T data) {this.status status;this.data data;}/*** 返回成功对象* param data* return*/public static T ResponseResultT ok(T data){return new ResponseResult(ResponseStatus.OK, data);}/*** 返回错误对象* param status* return*/public static ResponseResultString error(ResponseStatus status){return new ResponseResult(status,status.getMessage());}/*** 返回错误对象* param status* return*/public static ResponseResultString error(ResponseStatus status,String msg){return new ResponseResult(status,msg);}/*** 向流中输出结果* param resp* param result* throws IOException*/public static void write(HttpServletResponse resp, ResponseResult result) throws IOException {//设置返回数据的格式resp.setContentType(application/json;charsetUTF-8);//jackson是JSON解析包ObjectMapper用于解析 writeValueAsString 将Java对象转换为JSON字符串String msg new ObjectMapper().writeValueAsString(result);//用流发送给前端resp.getWriter().print(msg);resp.getWriter().close();}
} OSSutils
package com.dmdd.javasecuritypractice.util;import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSBuilder;
import com.aliyun.oss.OSSClientBuilder;import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.net.URL;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;/*** OSS文件上传工具类*/
public class OSSUtil {// Endpoint以杭州为例其它Region请按实际情况填写。private static String endpoint http://oss-cn-hangzhou.aliyuncs.com;// 云账号AccessKey有所有API访问权限建议遵循阿里云安全最佳实践创建并使用RAM子账号进行API访问或日常运维请登录 https://ram.console.aliyun.com 创建。private static String accessKeyId LTAI5M;private static String accessKeySecret **;private static String bucketName **;//目录名public static String dir images;/*** 文件上传* param inputStream* param fileName*/public static void upload(InputStream inputStream, String fileName){OSS oss new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);oss.putObject(bucketName,dir / fileName,inputStream);oss.shutdown();}/*** 获得文件URL* param fileName* return*/public static String getURL(String fileName){OSS oss new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);//设置过期时间LocalDateTime time LocalDateTime.now().plusDays(100);Date expiration Date.from(time.atZone( ZoneId.systemDefault()).toInstant());URL url oss.generatePresignedUrl(bucketName, dir / fileName, expiration);oss.shutdown();return url.toString();}public static void main(String[] args) throws FileNotFoundException {OSSUtil.upload(new FileInputStream(E:\\img\\xing.png),xing.png);System.out.println(OSSUtil.getURL(xing.png));}
}private static String endpoint http://oss-cn-hangzhou.aliyuncs.com;
// 云账号AccessKey有所有API访问权限建议遵循阿里云安全最佳实践创建并使用RAM子账号进行API访问或日常运维请登录 https://ram.console.aliyun.com 创建。
private static String accessKeyId LTAI5tHcwsYkxjt6YxgrEVAM;
private static String accessKeySecret WeBHibTdv1ybo44MlEWxo7VpCXyO1l;
private static String bucketName dmddjly设置文件上传到哪个bucket 以及 该bucket设置的秘钥。 还有设置bucket所选的地区 我选的是华东1杭州 2.3UpLoadController
package com.dmdd.javasecuritypractice.controller;import com.dmdd.javasecuritypractice.util.OSSUtil;
import com.dmdd.javasecuritypractice.util.ResponseResult;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;import java.io.IOException;RestController
public class UploadController {
PostMapping(/upload)public ResponseResultString upload(MultipartFile file) throws IOException{//上传OSSOSSUtil.upload(file.getInputStream(),file.getOriginalFilename());//获得urlString url OSSUtil.getURL(file.getOriginalFilename());return ResponseResult.ok(url);}
}调用工具类方法实现文件上传。 三. vue脚手架实现图片上传
3.1调用elementui的文件上传功能 el-form-item label头像 :label-widthformLabelWidthel-uploadclassavatar-uploaderactionhttp://localhost:8080/upload:show-file-listfalse:on-successhandleAvatarSuccess:before-uploadbeforeAvatarUploadimg v-ifuser.icon :srcuser.icon classavatari v-else classel-icon-plus avatar-uploader-icon/i/el-upload/el-form-item 1. action 是选择图片后将会发送的请求 2.:on-success 成功后执行的事件 3.:before-upload 发送图片前执行的事件可以进行图片类型 大小的限制 3.2两个事件
//上传图片成功回调handleAvatarSuccess(res, file) {console.log(res)this.user.icon res.data;},//上传前检查beforeAvatarUpload(file) {const isJPG file.type image/jpeg;const isLt2M file.size / 1024 / 1024 2;if (!isJPG) {this.$message.error(上传头像图片只能是 JPG 格式!);}if (!isLt2M) {this.$message.error(上传头像图片大小不能超过 2MB!);}return isJPG isLt2M;}, 最终结果
