app上传图片文件base64串,java后台怎样获取并解码 5C

app上传图片文件base64串,java后台怎样获取并解码

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java后台上传图片/文件到七牛云
文章转自原创博客     http://www.xdx97.com/#/single?bid=de501e31-1124-530d-0d93-a2c67f84393c                      
base64编码上传图片java后台接收实例
思路前台传以data:image/jpeg;base64,开头的base64编码的String字符串,后台接收字符串以后先进行base64解码 .decodeBuffer(),转换成二进制编码,然后使用字节输出流FileOutputStream()将文件保存到指定目录下。 报下面的错误 Error parsing HTTP request header Note: further occur
base64文件解码
$str = str_replace(' ', '+', $str); //替换空字符串为+ $str = str_replace('\n', '',$str); //置空换行符 $str = str_replace('\t', '',$str); $str = str_replace('\r', '',$str); $str = stripslashe
解码Base64并展示图片
Base64是网络上最常见的用于传输8Bit字节码的编码方式之一,Base64就是一种基于64个可打印字符来表示二进制数据的方法。 Base64编码是从二进制到字符的过程,可用于在HTTP环境下传递较长的标识信息。 例如,在Java Persistence系统Hibernate中,就采用了Base64来将一个较长的唯一标识符(一般为128-bit的UUID)编码为一个字符串,用作HTTP表单和
C#实战小技巧(七):获取文件Base64编码和Base64解码
在C#开发中,可以根据需求对文件进行base64的转码和解码。本文将提供两个函数实现上述功能,支持多种格式的文件和base64编码之间的相互转换。
python中base64编码与解码(将json串转化成base64)
python中base64编码与解码(将json串转化成base64) 单个字段转换 #- * - coding: utf - 8 - import requests import base64 import json #json串转换成base64(转码) encodestr = base64.b64encode(‘43048e640910498e94023893c4bb5320’.encode...
怎样对图片base64解码?
BASE64Decoder decoder = new BASE64Decoder();rnFile f = new File("what.gif");rnFileOutputStream fos = new FileOutputStream(f);rnbyte[] buf = decoder.decodeBuffer(strBase64);rnfos.write(buf);rnfos.close();rnrn不行呀!!怎么做?????
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@RequestMapping(params = "upload", method = RequestMethod.POST) @ResponseBody public void upload(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ...
Base64解码
项目的log里有很多上传文件后的base64编码的字符串,想把它解码为原来的文件。 [code="python"] import base64 with open('c:/excelText.txt','r') as f1: s = f1.read() b = base64.decodebytes(bytes(s,encoding='UTF-8')) wit...
base64解码
rn“我的祖国”----base64---> ztK1xNfmufo=rnrn“おはよう”----base64---> pKqkz6TopKY=rnrnrn以上的base64存放在string中,如何解码才能让中文和日文在string中正常显示、输出到winform中呢?rnrnrn
Base64的解码?
为什么在Delphi6里提供Base64Encode函数而没有相关的解码函数。还是我没有找到,忘指教。
base64 解码
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请问这个是 base64位的,怎么解码,我有解了一些 但是中文全部是乱码?rn这是 asp.net 的 __VIEWSTATE 中的数据
java后台发送请求并获取返回值
还可以跨域
Base64上传图片
Base64网上有很多介绍,这里就不多说了,不过下面这段wiki上的介绍个人觉得挺不错的。wiki上的介绍一段引用自托马斯·霍布斯《利维坦》的文句:Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, tha
base64上传图片
控制器代码 public function doTest(){ if($this->_request->isPost()) { $base64_img = trim($_POST['img']); $up_dir = './img/';//存放在当前目录的upload文件夹下 if(!...
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如题,现在在做移动端拍照上传图片照片给后台获取方式为@RequestParam(required = false) MultipartFile image,rn接收到的image为org.springframework.web.multipart.commons.CommonsMultipartFile@18af0ef ,转byte[]为[B@cfdbb3rn数据库为oracle,字段数据类型为BLOB,我存的时候总是报错,错误信息The current request is not a multipart request。rn请大神帮小弟出谋划策,万分感谢。。
base64图片流转为MultipartFile文件 java后台
MultipartFile是spring框架中的接口,需要自己写一个实现类。代码如下: public class BASE64DecodedMultipartFile implements MultipartFile { private final byte[] imgContent; private final String header; public BASE...
js编码java后台解码
js编码 var name = document.getElementById("name").value;   JavaScript进行一次编码 name = window.encodeURI(name);  var url = "/user/userlogin.action?name="+name;   window.open(url,'','width=600,heig
base64解码转成图片并上传
在Controller中   @ResponseBody @RequestMapping(value = "/avatarUploadByBase64.json", method = RequestMethod.POST) @ApiOperation(value = "头像上传", notes = "头像上传", position = 5) public Response...
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Js中,使用get提交,url传递参数的时候,会带来中文乱码的问题,对此可以使用js的函数encodeURI(href);来解决。 一、Js编码的几种方式区别: 1、window.escape()与HttpUtility.UrlEncodeUnicode()编码格式一样:将一个汉字编码为%uxxxx格式 不会被window.escape编码的字符有:@ _ - . * / + ...
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问题是这样的: 现在有两个url地址,注:*都是字母,这边只是隐藏下敏感单词rn正确的: :http://uim.sh.*-of-*.com/lks/koa/lks_news.nsf/?opendatabase&Category=门户公告类rnrn被编码后的地址:http://uim.sh.*%u2dof%u2d*.com/lks/koa/lks_news.nsf/?opendatabase&Category=%u95e8%u6237%u516c%u544a%u7c7brnrn这边可以看到,地址中的两个“-”和“门户公告类”编码了,我现在得到的参数more是那个被编码后的地址,即:rnString more = "http://uim.sh.bank%u2dof%u2dchina.com/lks/koa/lks_news.nsf/?opendatabase&Category=%u95e8%u6237%u516c%u544a%u7c7b";rnrn问题来了,这边我用了几种方法都失败,有些是网上找的方法:rnrn方法一(直接代码):rnrnString more = "http://uim.sh.bank%u2dof%u2dchina.com/lks/koa/lks_news.nsf/?opendatabase&Category=%u95e8%u6237%u516c%u544a%u7c7b";rn System.out.println(more);rn String moreURL = new String(more.getBytes("ISO8859-1"), "GB2312");rn System.out.println(moreURL);rn这个方法是网上找的,但是最后输出的 moreURL还是原来的,没变化,不明白是为什么,想知道原因,是我参数写错了?rnrn方法二:rnrnString more = "http://uim.sh.bank%u2dof%u2dchina.com/lks/koa/lks_news.nsf/?opendatabase&Category=%u95e8%u6237%u516c%u544a%u7c7b";rn System.out.println(more);rn more = URLDecoder.decode(more, "UTF-8");rn System.out.println(more);rn这个方法,代码运行到这里报错,不知道什么原因rnrn这边我的目的就是把那个参数解码,如果有知道其它方法的高手请赐教下,因为我找不到对这个参数编码的地方,所以也没法提供编码的函数
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通过base64上传图片到服务器并读取图片
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文章目录工具类使用方法 工具类 package com.liginfo.app.util; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.geom.A...
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/** * @date : 2017-11-06 15:19 * @description : 头像上传 * @param : Member(成员对象) * */ @RequestMapping("/uploadHeader") public @ResponseBody Map uploadHeader(@RequestParam String base64Data){ Map ma
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使用语音云服务,c#模拟发送http请求,获得response。得到的结果如下,但是很无奈,retData本来是base64编码的字符串,但是他的/是用转义符“\”引导的,所以截取字符串使用c#的base64解码函数会报错,求告知怎么获得retData的没有转义字符的字符串。rn"errNum":0,"retMsg":"success","retData":"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"rn
base64编码与解码
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