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分享struts2 action中的数组怎样在jsp页面添加
如，action页面中定义一数组
int [] gids;
public int[] getGids() {
return gids;
}
public void setGids(int[] gids) {
this.gids = gids;
}
jsp页面
<c:forEach items="${list}" var="lis" varStatus="vs">
<s:checkbox label="选购" name="check"/>
</c:forEach>
怎样循环添加到action页面的数组;
int [] gids;
public int[] getGids() {
return gids;
}
public void setGids(int[] gids) {
this.gids = gids;
}
jsp页面
<c:forEach items="${list}" var="lis" varStatus="vs">
<s:checkbox label="选购" name="check"/>
</c:forEach>
怎样循环添加到action页面的数组;
...全文
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古布 2012-06-03
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用 String[]类型试试
http://www.iteye.com/problems/51409
http://www.iteye.com/problems/51409
wanghong_w 2012-06-03
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不行，获取不到它的值。
古布 2012-06-03
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页面的控件名和Action属性名一致
zjj911 2012-06-03
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<s:checkbox label="选购" name="gids" key="gids"/>这句用错，你没提交数据
还有fieldValue属性，这里面才是传到后台的值，别的地方没什么问题！
还有fieldValue属性，这里面才是传到后台的值，别的地方没什么问题！
古布 2012-06-03
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1. <s:checkbox label="选购" name="gids" key="gids"/>
==》
<input type="checkbox" id="name" value="${lis.id}">
2 BigDecimal[] gids;
==>
String[] gids;
==》
<input type="checkbox" id="name" value="${lis.id}">
2 BigDecimal[] gids;
==>
String[] gids;
wanghong_w 2012-06-03
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还是，获取不到，麻烦你帮我看看是怎么会事、
struts.xml文件配置：
<struts>
<include file="struts-default.xml" />
<package name="default" extends="struts-default">
<action name="goods" class="com.szy.Action.GoodsAction" method="findAll">
<result name="success">index.jsp</result>
</action>
<action name="preorder" class="com.szy.Action.OrdersAction" method="preorder">
<result>preorder.jsp</result>
<result name="input">goods.action</result>
</action>
<action name="order" class="com.szy.Action.OrdersAction" method="order">
<result name="input" type="redirect">
<param name="actionName">preorder?gids=${gids}</param>
</result>
<result>showOrder.jsp</result>
<result name="error" type="redirect">error.jsp</result>
</action>
<action name="findById" class="com.szy.Action.OrdersAction" method="findById" >
<result>showOrder.jsp</result>
<result name="input" type="redirect">index.jsp</result>
</action>
</package>
</struts>
action类：
public class OrdersAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = -418868519339099014L;
private List<JbitOrders> orders;
private JbitOrders order;//订单表对象
private BigDecimal[] gids;//商品表ID
private BigDecimal[] amounts;//订购商品数量
private List<JbitGoods> goods=new ArrayList<JbitGoods>();//被选购的商品集合
private double totalprice;//总金额
private JbitGoodsDAO jgd=new JbitGoodsImpl();
private JbitOrdersDAO jod=new JbitOrdersImpl();
public String preorder() throws Exception {
// TODO Auto-generated method stub
if(gids!=null){
for(BigDecimal gi:gids){
goods.add(jgd.findById(gi));
}
return SUCCESS;
}
return INPUT;
}
public String order()throws Exception{
if(gids==null || amounts==null)return INPUT;
if(gids.length!=amounts.length)return INPUT;
if(orders==null)return INPUT;
for(int i=0;i<gids.length;i++){
JbitOrderitem joi=new JbitOrderitem();
JbitGoods jbg=jgd.findById(gids[i]);
joi.setAmount(amounts[i]);
joi.setJbitOrders(order);
joi.setJbitGoods(jbg);
order.getJbitOrderitems().add(joi);
}
return this.findById();
}
public String findById(){
BigDecimal id=jod.save(order);
if(id!=null){
order=jod.findById(id);
totalprice=this.getTatalPriceByOrders(order);
return SUCCESS;
}
return ERROR;
}
//计算出总金额
public double getTatalPriceByOrders(JbitOrders orde){
double total=0;
Set<JbitOrderitem> set=orde.getJbitOrderitems();
for(JbitOrderitem jb:set){
total+=new Double(jb.getAmount().toString())* new Double(jb.getJbitGoods().getPrice());
}
return total;
}
//下面get,set方法
public List<JbitOrders> getOrders() {
return orders;
}
public void setOrders(List<JbitOrders> orders) {
this.orders = orders;
}
public JbitOrders getOrder() {
return order;
}
public void setOrder(JbitOrders order) {
this.order = order;
}
public BigDecimal[] getGids() {
return gids;
}
public void setGids(BigDecimal[] gids) {
this.gids = gids;
}
public BigDecimal[] getAmounts() {
return amounts;
}
public void setAmounts(BigDecimal[] amounts) {
this.amounts = amounts;
}
public List<JbitGoods> getGoods() {
return goods;
}
public void setGoods(List<JbitGoods> goods) {
this.goods = goods;
}
public double getTotalprice() {
return totalprice;
}
public void setTotalprice(double totalprice) {
this.totalprice = totalprice;
}
jsp页面
<body>
<h1>商品展示</h1>
<div>
<c:forEach items="${list}" var="lis" varStatus="vs">
<div>${lis.name} <s:checkbox label="选购" name="gids" key="gids"/></div>
<div> 厂商：${lis.manufacturer}</div>
<div>价格：${lis.price}</div>
<div>${lis.specification}</div>
</c:forEach>
</div>
<button onclick="window.location='order.action'">订购</button>
</body>
struts.xml文件配置：
<struts>
<include file="struts-default.xml" />
<package name="default" extends="struts-default">
<action name="goods" class="com.szy.Action.GoodsAction" method="findAll">
<result name="success">index.jsp</result>
</action>
<action name="preorder" class="com.szy.Action.OrdersAction" method="preorder">
<result>preorder.jsp</result>
<result name="input">goods.action</result>
</action>
<action name="order" class="com.szy.Action.OrdersAction" method="order">
<result name="input" type="redirect">
<param name="actionName">preorder?gids=${gids}</param>
</result>
<result>showOrder.jsp</result>
<result name="error" type="redirect">error.jsp</result>
</action>
<action name="findById" class="com.szy.Action.OrdersAction" method="findById" >
<result>showOrder.jsp</result>
<result name="input" type="redirect">index.jsp</result>
</action>
</package>
</struts>
action类：
public class OrdersAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = -418868519339099014L;
private List<JbitOrders> orders;
private JbitOrders order;//订单表对象
private BigDecimal[] gids;//商品表ID
private BigDecimal[] amounts;//订购商品数量
private List<JbitGoods> goods=new ArrayList<JbitGoods>();//被选购的商品集合
private double totalprice;//总金额
private JbitGoodsDAO jgd=new JbitGoodsImpl();
private JbitOrdersDAO jod=new JbitOrdersImpl();
public String preorder() throws Exception {
// TODO Auto-generated method stub
if(gids!=null){
for(BigDecimal gi:gids){
goods.add(jgd.findById(gi));
}
return SUCCESS;
}
return INPUT;
}
public String order()throws Exception{
if(gids==null || amounts==null)return INPUT;
if(gids.length!=amounts.length)return INPUT;
if(orders==null)return INPUT;
for(int i=0;i<gids.length;i++){
JbitOrderitem joi=new JbitOrderitem();
JbitGoods jbg=jgd.findById(gids[i]);
joi.setAmount(amounts[i]);
joi.setJbitOrders(order);
joi.setJbitGoods(jbg);
order.getJbitOrderitems().add(joi);
}
return this.findById();
}
public String findById(){
BigDecimal id=jod.save(order);
if(id!=null){
order=jod.findById(id);
totalprice=this.getTatalPriceByOrders(order);
return SUCCESS;
}
return ERROR;
}
//计算出总金额
public double getTatalPriceByOrders(JbitOrders orde){
double total=0;
Set<JbitOrderitem> set=orde.getJbitOrderitems();
for(JbitOrderitem jb:set){
total+=new Double(jb.getAmount().toString())* new Double(jb.getJbitGoods().getPrice());
}
return total;
}
//下面get,set方法
public List<JbitOrders> getOrders() {
return orders;
}
public void setOrders(List<JbitOrders> orders) {
this.orders = orders;
}
public JbitOrders getOrder() {
return order;
}
public void setOrder(JbitOrders order) {
this.order = order;
}
public BigDecimal[] getGids() {
return gids;
}
public void setGids(BigDecimal[] gids) {
this.gids = gids;
}
public BigDecimal[] getAmounts() {
return amounts;
}
public void setAmounts(BigDecimal[] amounts) {
this.amounts = amounts;
}
public List<JbitGoods> getGoods() {
return goods;
}
public void setGoods(List<JbitGoods> goods) {
this.goods = goods;
}
public double getTotalprice() {
return totalprice;
}
public void setTotalprice(double totalprice) {
this.totalprice = totalprice;
}
jsp页面
<body>
<h1>商品展示</h1>
<div>
<c:forEach items="${list}" var="lis" varStatus="vs">
<div>${lis.name} <s:checkbox label="选购" name="gids" key="gids"/></div>
<div> 厂商：${lis.manufacturer}</div>
<div>价格：${lis.price}</div>
<div>${lis.specification}</div>
</c:forEach>
</div>
<button onclick="window.location='order.action'">订购</button>
</body>
