add.html里面，提交表单，入口方法处适配pojo后，这个pojo类的属性值全为空，我想问，什么时候会造成这种现象？
@At
@Ok("json")
public Object addDo(@Param("..") Bus_con bus_con ,@Param("at") String date, HttpServletRequest req) {
try {
bus_con 的属性值全为空，表单提交时都输入了数据，并且input的name,id都与pojo类字段名能对应上
14 回复
ajaxForm
$('#addForm').ajaxForm({
dataType: 'json',
beforeSubmit: function (arr, form, options) {
form.find("button:submit").button("loading");
},
success: function (data, statusText, xhr, form) {
if (data.code == 0) {
Toast.success(data.msg);
form.resetForm();
} else {
Toast.error(data.msg);
}
form.find("button:submit").button("reset");
}
});
这个arr都有值，正好是我表单要提交的数据
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="Id"
GP-C2017821113739
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="at"
2017-08-23
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="unit"
李晓峰
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="phone"
13652452146
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="file_upload"
------WebKitFormBoundary1SiiYrWA2Y9JYpvl
Content-Disposition: form-data; name="att"
/upload/test/20170823113339/手册.doc
------WebKitFormBoundary1SiiYrWA2Y9JYpvl--
<div class="form-group">
<label for="att" class="col-sm-2 control-label">文件</label>
<div class="col-sm-8">
<div id="queue"></div>
<div>
<input id="file_upload" name="file_upload" type="file" multiple="false">
</div>
<input type="hidden" id="att" name="att" value="" >
</div>
</div>
<div class="form-group">
<label for="att" class="col-sm-2 control-label">文件</label>
<div class="col-sm-8">
<div id="queue"></div>
<div>
<input id="file_upload" name="file_upload" type="file" multiple="false">
</div>
</div>
<input type="hidden" id="att" name="att" value="" >
</div>
上面那样写就Ok了，下面那样写始终都是空，能解释一下吗
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