angular自定义url访问

导出文件

const xhr = new XMLHttpRequest();
const url = ASYNC_URLS.serverUrl + 'rmApi/supp/baseOrderInfo/exportOrderDetailMessage?baseOrderInfo.orderId=' + (this.formInfo.orderId ? this.formInfo.orderId : '') + '&baseOrderInfo.purchaseStatus=' + (this.formInfo.purchaseStatus ? this.formInfo.purchaseStatus : '');

xhr.open('get', url, true);
xhr.responseType = 'blob';
let accessToken = sessionStorage.getItem('accessToken');
xhr.setRequestHeader('tokenId', JSON.parse(accessToken).tokenId);
xhr.onload = function() {
if (this.status === 200) {
const blob = this.response;
const temp = this.getResponseHeader('Content-disposition').split('=')[1]; // 获取文件名 处理中文乱码
const fileName = decodeURIComponent(temp);
if (window.navigator.msSaveOrOpenBlob) {    // IE浏览器下
navigator.msSaveBlob(blob, fileName);
} else {
const link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = fileName;
link.click();
window.URL.revokeObjectURL(link.href);
}
}
};
xhr.send(null);

上传文件

uploadHand($event, fileUpload) {
const xhr = new XMLHttpRequest();
const files = $event.files;

xhr.onreadystatechange = ev => {
this.onUpload(ev, files[0].name, fileUpload);
};
const url = this.uploadUrl;
const formData: FormData = new FormData();
for (let i = 0; i < files.length; i++) {
formData.append('file', files[i], files[i].name);
}
xhr.open('POST', url, true);
xhr.setRequestHeader('tokenId', JSON.parse(sessionStorage.getItem('accessToken')).tokenId
);
xhr.send(formData);
}

onUpload(event, fileName, fileUpload) {
if (event.target.readyState === 4) {
this.fileName = fileName;
const res = JSON.parse(event.target.response);
if (res['operateSuccess']) {
this.tableData = res['baseVendorVos'];
this.allowImport = res['allowImport'];
this.allowCount = res['allowCount'];
this.forbidCount = res['forbidCount'];
this.noData = false;
this.nextFlag = false;
} else {
this.noData = true;
}
}
fileUpload.files = [];
}

响应头处理

response.setHeader(“Access-Control-Allow-Origin”, “");
response.setHeader(“Access-Control-Expose-Headers”, "”);
response.setHeader(“Content-disposition”, “attachment; filename=” + fileName);
response.setContentType(“application/vnd.ms-excel;charset=utf-8”);
response.setCharacterEncoding(“utf-8”);