ajax数据检索值给出输出为undefined

Question

我为我的jsp创建了一条ajax线... Sql查询重新列出了很多列..我想在for循环中添加这些列，并且for循环工作正常，这是在ajax cors内部。但是当jsp页面加载所有值时显示为未定义。我不能客人说错误。值成功传递给jsp.I使用postman检查它并提醒msg ...

My model class is Product

import javax.persistence.*;
import javax.validation.constraints.NotNull;

@Entity
@Table(name = "products")
public class Product {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "product_id")
    private long productId;

    @NotNull
    @Column(unique = true, nullable = false)
    private int serialNo;

    private int slsiUnit;
    private String itemDesc;
    private int slsNo;
    private String hsCode;
    private String userId;

    public long getProductId() {
        return productId;
    }

    public void setProductId(long productId) {
        this.productId = productId;
    }

    public int getSerialNo() {
        return serialNo;
    }

    public void setSerialNo(int serialNo) {
        this.serialNo = serialNo;
    }

    public int getSlsiUnit() {
        return slsiUnit;
    }

    public void setSlsiUnit(int slsiUnit) {
        this.slsiUnit = slsiUnit;
    }

    public String getItemDesc() {
        return itemDesc;
    }

    public void setItemDesc(String itemDesc) {
        this.itemDesc = itemDesc;
    }

    public int getSlsNo() {
        return slsNo;
    }

    public void setSlsNo(int slsNo) {
        this.slsNo = slsNo;
    }

    public String getHsCode() {
        return hsCode;
    }

    public void setHsCode(String hsCode) {
        this.hsCode = hsCode;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder("Product{");
        sb.append("serialNo=").append(serialNo);
        sb.append(", slsiUnit=").append(slsiUnit);
        sb.append(", itemDesc='").append(itemDesc).append('\'');
        sb.append(", slsNo=").append(slsNo);
        sb.append(", hsCode='").append(hsCode).append('\'');
        sb.append(", userId='").append(userId).append('\'');
        sb.append('}');
        return sb.toString();
    }
}

ajax cord是

 <script>
        $(document).ready(function () {
            $.ajax({
                type: 'GET',
                url: '${pageContext.request.contextPath}/restservice/ViewProduct',
                success: function (result) {
                    var jString = JSON.stringify(result);
                    var jdata = JSON.parse(jString);
                    alert(jString);
                    for (var x = 0; x < jdata.length; x++) {
                        var tr = "<tr>";
                        var td1 = "<td>" + jdata.itemDesc + "</td>";
                        var td2 = "<td>" + jdata.itemDesc + "</td>";
                        var td3 = "<td>" + jdata.serialNo + "</td>";
                        var td4 = "<td>" + jdata.serialNo + "</td>";
                        var td5 = "<td>" + jdata.serialNo + "</td></tr>";
                        $("#example2").append(tr + td1 + td2 + td3 + td4 + td5);
                    }
                }
            });
        });
    </script>

当我在JSP上的jString添加警报时，所有值视图都成功。我想将这些值映射到表

请帮帮我。