在這三天中我們的實訓也逐步進入正軌，我們做了查詢，刪除，條件查詢，預覽修改，預覽

一.在查詢中

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;
}

}

?

我們會出現跳轉錯誤和屬性錯誤，我們仔細查找發現原來是代碼的名稱不同而已

然后鏈接到網頁出現的頁面

2.緊接著就是刪除操作了

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;
}

}在刪除操作中我出現的問題不是很難，只要細心一點，問題都解決了

條件查詢也就是在這個的基礎上進行

3.修改，修改分為預覽修改和修改

對于預覽修改就是修改的前調步驟

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;
}

?在修改中我們出現的錯誤是

?

經過這三天我也發現了在連接數據表的時候，首先要進行數據表的連接

在JSP中的action請求中，首先要進行action的實現，利用struts.xml連接前端，利用action.xml連接后端。

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

<!-- 條件查詢 -->
<action name="findCdtCustList" class="findCdtAction">
<result>/jsp/custInfo.jsp</result>
</action>
<!-- 修改預覽 -->
<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請求

這三天不停地查找bug,每次查找的bug都使我不斷地去反思，去思考，使我把之前學習的java內容復習了一遍，溫故而知新，很充實，很快樂。

轉載于:https://www.cnblogs.com/ctt-2017/p/7106218.html

總結

以上是生活随笔為你收集整理的短学期实训——第二篇的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。