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form表單送出,背景實體類接收轉義問題

問題:前台表單用ajax送出,data為validateForm.serializeArray(),背景用實體類接收參數,&符号被轉義為&但是從request中直接取值是沒問題的,請問如何解決實體類接收到的參數的轉義問題。

代碼如下:

前台代碼:

var formData = validateForm.serializeArray();

$.ajax({
    type: 'POST',
    cache: false,
    url: basepath + "/newProjectAdjustment/saveProjectAdjustmentInfo.do",
    data: formData,
    dataType: "json",
    async:false,
    success: function (result) {
        if (result.success) {
            saveFlag = true;
        } else {
            parent.$.messager.alert("提示", result.msg != "操作成功" ? result.msg : projMessage.get("C008"), "info");
        }
    },
    error: function (result) {
        parent.$.messager.alert("提示", projMessage.get("C008"), "info");
    }
});
return saveFlag;      
後端代碼:
@RequestMapping(value = "saveProjectAdjustmentInfo.do", method = RequestMethod.POST)
@ResponseBody
public AjaxJson saveProjectAdjustmentInfo(HttpServletRequest request, ProjectAdjustmentDTO projectAdjustmentInfo) throws InvocationTargetException, IllegalAccessException {
    Map params = FormFormatterUtil.formatFrom2Map(request);
 
    AjaxJson result = new AjaxJson();
   
    return result;
}

Debug:
這是實體類中接收的參數:      
form表單送出,背景實體類接收轉義問題

這是request種接收的參數: