springMVC文件上传以及基础数据提交（两种数据一并提交，单独提交很简单就不说了）

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自定义表单提交
js代码

//创建一个表单对象
var formData = new FormData();
//头像input
if($("#touxiang").val() != "") {
		formData.append("touxaing", $("#touxiang")[0].files[0]);
}
//用户对象
var customer = {
		'nickname': "张三",
		'birthday': 2018-10-01 12:12:00,
		'sex': "男"
	}
formData.append("customer", JSON.stringify(customer));
$.ajax({
		type: 'POST',
		url: "../../customer/saveCustomer.do",
		data: formData,
		contentType: false,
		processData: false, //这个很有必要，不然不行
		mimeType: "multipart/form-data",
		dataType: "json",
		success: function(data) {
			alert(data.message);
			window.location.reload();
		}
})

后台java代码，controller层

/**
 * 保存个人资料
 */
@SuppressWarnings("rawtypes")
@RequestMapping("/saveCustomer")
@ResponseBody
public void saveCustomerData( @RequestParam(required=false) MultipartFile touxaing, @RequestParam String customer){
	ObjectMapper objectMapper = new ObjectMapper();  
	//将json对象序列化成java对象
	Customers customer = objectMapper.readValue(customer, Customers.class);
	//头像img
	if (touxaing != null) {
		//获取文件名
		String oldName = touxaing.getOriginalFilename();
		//截取文件后缀名
		String extName = oldName.substring(oldName.lastIndexOf(".") + 1);
		//调用工具类获取数据库保存的url,传入文件名和后缀名
		//此处省略一万行代码
	}
}