function getMes() {
var username= $("#userName").val();
var bankCard=$("#bankCard").val();
var param={};
param.userName=username;
param.bankCard=bankCard;
$.ajax({
url:"/index/backups",
type:"POST",
secureuri:false,
data:param,
success:function () {
alert("备份成功!");
}
});
}
后台
@RequestMapping("/backups")
@ResponseBody
public void backups(userDao user){
try {
File writeMes = new File("E:\test.txt");//相对路径如果没有,则建立
writeMes.createNewFile();//创建新的文件,有同名的文件的话直接覆盖
FileWriter writer= new FileWriter(writeMes);
BufferedWriter out=new BufferedWriter(writer);
out.write(user+"");
out.flush();//把缓存区内容压入文件
} catch (IOException e) {
e.printStackTrace();
}
}
控制台和浏览器都未报错
html
<form>
<button onclick="keepMes()">保存</button><input type="reset" value="重新输入"><br>
<input type="button" value="返回" onclick="back()">
<button onclick="getMes()">备份</button>
<form>
发现是因为button按钮在form里的缘故刷新了页面