短学期实训——第二篇

在这三天中我们的实训也逐步进入正轨，我们做了查询，删除，条件查询，预览修改，预览

一.在查询中

package com.crm.action;

import java.util.Map;

import com.crm.bean.Cust;
import com.crm.service.CustService;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class FindCustByCdAction extends ActionSupport{

private CustService cdtCustService;
Cust cust;

public CustService getCdtCustService() {
return cdtCustService;
}
public void setCdtCustService(CustService cdtCustService) {
this.cdtCustService = cdtCustService;
}
public Cust getCust() {
return cust;
}
public void setCust(Cust cust) {
this.cust = cust;
}
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
Map map = (Map)ActionContext.getContext().get("request");
map.put("list", this.cdtCustService.findCustByCondition(cust));
return SUCCESS;
}

}

 

我们会出现跳转错误和属性错误，我们仔细查找发现原来是代码的名称不同而已

然后链接到网页出现的页面

2.紧接着就是删除操作了

package com.crm.action;

import com.crm.bean.Cust;
import com.crm.service.CustService;
import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class RemoveCustAction extends ActionSupport{

private Cust cust;
private CustService rmvCstService;

public CustService getRmvCstService() {
return rmvCstService;
}

public void setRmvCstService(CustService rmvCstService) {
this.rmvCstService = rmvCstService;
}

@SuppressWarnings("unchecked")
@Override
public String execute() throws Exception {
this.rmvCstService.removeCust(cust);
return SUCCESS;
}

public Cust getCust() {
return cust;
}

public void setCust(Cust cust) {
this.cust = cust;
}

}在删除操作中我出现的问题不是很难，只要细心一点，问题都解决了

条件查询也就是在这个的基础上进行

3.修改，修改分为预览修改和修改

对于预览修改就是修改的前调步骤

package com.crm.action;

import com.crm.bean.Cust;
import com.crm.service.CustService;
import com.opensymphony.xwork2.ActionSupport;

public class UpdataCustAction extends ActionSupport{

/**
*
*/
private static final long serialVersionUID = 1L;
private Cust cust;
private CustService upCustService;

public Cust getCust() {
return cust;
}

public void setCust(Cust cust) {
this.cust = cust;
}

public CustService getUpCustService() {
return upCustService;
}

public void setUpCustService(CustService upCustService) {
this.upCustService = upCustService;
}

@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
this.upCustService.findCustById(cust.getId());
return SUCCESS;
}

 在修改中我们出现的错误是

 

经过这三天我也发现了在连接数据表的时候，首先要进行数据表的连接

在JSP中的action请求中，首先要进行action的实现，利用struts.xml连接前端，利用action.xml连接后端。

Action前端

struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="customer" extends="struts-default">
<!-- 保存 -->
<action name="saveCustomer" class="saveCustomerAction">
<result name="success" type="redirect">/jsp/custInfo.jsp</result>
<result name="input">/custSave.jsp</result>

</action>
<!-- 查询 -->
<action name="listCust" class="listCustAction">
<result>/jsp/custInfo.jsp</result>
</action>
<!-- 删除 -->
<action name="removeCust" class="removeCustAction">
<result>/jsp/custInfo.jsp</result>
</action>

<!-- 条件查询 -->
<action name="findCdtCustList" class="findCdtAction">
<result>/jsp/custInfo.jsp</result>
</action>
<!-- 修改预览 -->
<action name="updatePreviewCust" class="updatePreviewCustAction">
<result name="success">/jsp/custUpdate.jsp</result>
</action>
<!-- 修改 -->
<action name="updateCust" class="updateCustAction">
<result name="success" type="redirect">listCust.action</result>
<result name="input">/jsp/custUpdate.jsp</result>
</action>
</package>
</struts>

Jsp请求

这三天不停地查找bug,每次查找的bug都使我不断地去反思，去思考，使我把之前学习的java内容复习了一遍，温故而知新，很充实，很快乐。