ajax上传file文件
辛成周
前端
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="js/jquery.min.js"></script>
</head>
<body>
<form id="uploadForm" enctype="multipart/form-data">
<input id="file" type="file" name="file"/>
<button id="upload" type="button">upload</button>
</form>
</body>
<script>
$("#upload").click(function () {
$.ajax({
url: 'http://localhost:8081/upload0',
type: 'POST',
cache: false,
data: new FormData($('#uploadForm')[0]),
processData: false,
contentType: false,
success: function (data) {
console.log(data)
alert(data.msg)
}
}).fail(function (res) {
console.log(res)
alert("系统错误")
});
});
</script>
</html>
后端
注意跨域问题
/**
* 文件上传
*
* @param file
* @return
*/
@CrossOrigin
@RequestMapping(path = "/upload0", method = {RequestMethod.POST})
public Result upload0(MultipartFile file) {
if (!file.isEmpty()) {
String upload = FileUtil.fileUpload(file);
System.out.println(upload);
return Result.init(200, "上传成功", null);
}
return Result.init(-200, "上传失败", null);
}
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