axios中设置了response:blol后，如何处理json对象
axios中文件下载
上传文件后台校验，若失败则下载文件
let loading = this.$common.loading("正在上传");
let form = new FormData();
let headers = {
responseType: "blob"
};
form.append("file", e.file);
this.$axios
.post(e.action, form, headers)
.then(res => {
loading.close();
let _this = this;
let reader = new FileReader();
reader.readAsText(res, "utf-8");
reader.onload = function() {
try {
let a = JSON.parse(this.result);
let b = a.data.totel;
let c = b.split(",");
_this.$message.success(
`总共${c[0]}条, 成功${c[1]}条, 重复${c[2]}条(数据库中已存在))`
);
} catch (error) {
let blob = new Blob([res]);
let objectUrl = URL.createObjectURL(blob);
let a = document.createElement("a");
a.href = objectUrl;
a.download = "错误样本.xls";
//下面这个写法兼容火狐
a.dispatchEvent(
new MouseEvent("click", {
bubbles: true,
cancelable: true,
view: window
})
);
window.URL.revokeObjectURL(blob);
}
};
reponseType设为blob后如何校验是否正确与否
抽离上面的东东
后台处理逻辑为成功返回json，失败返回流提供下载
思路将blob转化为json,转换成功则上传成功,转换失败为流下载文件
let reader = new FileReader();
reader.readAsText(res, "utf-8");
reader.onload = function() {
try {
let a = JSON.parse(this.result);
let b = a.data.totel;
let c = b.split(",");
_this.$message.success(
`总共${c[0]}条, 成功${c[1]}条, 重复${c[2]}条(数据库中已存在))`
);
} catch (error) {
let blob = new Blob([res]);
let objectUrl = URL.createObjectURL(blob);
let a = document.createElement("a");
a.href = objectUrl;
a.download = "错误样本.xls";
//下面这个写法兼容火狐
a.dispatchEvent(
new MouseEvent("click", {
bubbles: true,
cancelable: true,
view: window
})
);
window.URL.revokeObjectURL(blob);
}
}
