Question

我的Action类中包含CoverageInfoVO类型数组，并希望将值从jsp发送到action类，但它没有被映射。而不是数组如果我切换到ArrayList它工作正常。我的疑问是，我们不能将数组从jsp传递给struts2中的Action吗？我已添加了代码段以便更好地说明。

JSP

<input type="text" name="coverageInfoList[0].month">

动作

public class MyAction {
    private CoverageInfoVO[] coverageInfoList;

    public CoverageInfoVO[] getCoverageInfoList() {
       return coverageInfoList;
    }

    public void setCoverageInfoList(CoverageInfoVO[] coverageInfoList) {
        this.coverageInfoList = coverageInfoList;
    }

    ........
}

CoverageInfoVO

public class CoverageInfoVO {
    private String month;
    private String enrollmentPremium;
    private String secondLowestCostSilverPlanPremium;
    private String advancePaymentOfPremiumTaxCredit;

    public String getMonth() {
        return month;
    }

    public void setMonth(String month) {
        this.month = month;
    }

    ...................
}

Answer 1

最后，我能够找出jsp值未映射到Object Array背后的原因。原因是CoverageInfoVO没有自动在数组内部初始化，因此需要在构造函数内手动初始化，然后自动映射值。

<强>实施例

public MyAction(){
  this.coverageInfoList = new CoverageInfoVO[13];
  for (int i = 0; i < coverageInfoList.length; i++)
        this.coverageInfoList[i] = new CoverageInfoVO();
}

数组可以从jsp传递并映射到struts 2中action类中的数组（而不是arrayList）吗？

1 个答案: