struts2 action 接受数组参数为Null的问题

public List<FormulaDetail> formulaDetails; public List<FormulaDetail> getFormulaDetails() { return formulaDetails; } public void setFormulaDetails(List<FormulaDetail> formulaDetails) { this.formulaDetails = formulaDetails; }

JSP传过来的数组formulaDetails[0].count不能被struts2接收，经过查询发现是FormulaDetail类没有缺省的构造函数

public FormulaDetail() { }

只有一个带参数的函数

/** full constructor */ public FormulaDetail(Integer formulaId, Integer goodsCategory, Integer percent) { this.formulaId = formulaId; this.goodsCategory = goodsCategory; this.percent = percent; }

讲缺省构造函数添加之后,成功接收数组参数

 

转载于:https://www.cnblogs.com/yangchengInfo/p/3514979.html