axios接受图片类型

• 前端处理

axios({

url: \’/development-web/img/code\’,

method: \’post\’,

responseType: \’arraybuffer\’

}).then(res => {

let bytes = new Uint8Array(res.data);

let data = \”\”;

let len =

.byteLength;

for (let i = 0; i < len; i++) {

data += String.fromCharCode(bytes[i]);

}

this.srcKaptcha = \”data:image/png;base64,\” + window.btoa(data);

})

注意responseType的类型是一个数组,

后台直接用response.out输出;

• 后端处理

// 生成文字验证码

String text = producer.createText();

// 生成图片验证码

ByteArrayOutputStream outputStream = null;

BufferedImage image = producer.createImage(text);

outputStream = new ByteArrayOutputStream();

ImageIO.write(image, \”jpg\”, outputStream);

// 对字节数组Base64编码

BASE64Encoder encoder = new BASE64Encoder();

******转化为base64字节输出

ncoder.encode(outputStream.toByteArray())

前台AXIOS

dataType: \”json\”, 接受类型改成json

vm.src = \’data:image/jpeg;base64,\’+result.img;

加上类型编码的前缀即可