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AngularJs图片获取自定义Header,
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此处我们主要是为了通过定义自定义指令,处理web页面请求图片时能够通过angular拦截器以便统一携带登陆认证信息
app.directive('httpSrc',[ '$http',function ($http) { var directive = { link: link,restrict: 'A' }; return directive;
function link(scope,element,attrs) {
var requestConfig = {
method: 'Get',url: attrs.httpSrc,responseType: 'arraybuffer',cache: 'true'
};
$http(requestConfig)
.success(function(data) {
var arr = new Uint8Array(data);
var raw = '';
var i,j,subArray,chunk = 5000;
for (i = 0,j = arr.length; i < j; i += chunk) {
subArray = arr.subarray(i,i + chunk);
raw += String.fromCharCode.apply(null,subArray);
}
var b64 = btoa(raw);
attrs.$set('src',"data:image/jpeg;base64," + b64);
});
}
}
]);