Struts2框架的輸入校驗（一）

在項目中，算是爲了學習吧，我採用了兩種方式，本文並未進行類型轉換的異常處理，在實際應用過程中，程序的流程是：Struts2對客戶端傳來的數據進行類型轉換->輸入校驗->execute方法(方法名稱不一定爲execute，準確的講應爲action對應的的方法名稱)。

現分別將兩種校驗方式進行如下記錄描述（注：錯誤提交都採用addFieldError方式）：

 

一、自定義校驗方法

校驗的方法名稱爲validate + action方法名稱（大寫第一個字母），如下文中的validateAdd 與add，在jsp頁面要加入<s:fielderror></s:fielderror> 來處理輸入校驗時加入addFieldError的信息。

下面是對應的文件：PowerArea.java(臺區信息類) 、PowerAreaAct.java(臺區信息action類)、powerarea_add.jsp(顯示頁面)、document.xml(xml配置文件)、struts.xml(框架配置文件)、MySuperAction.java(接口類)。

 

各文件關鍵代碼如下：

1、PowerArea.java

 package com.techen.masterstation.document; /** * 臺區信息類 * */ public class PowerArea { private String lineId; private String id; private String name; private String measureKind; private String industry; private String inVoltage; private String outVoltage; private String capacity; private String address; private String linkman; private String tel; public String getLineId() { return lineId; } public void setLineId(String lineId) { this.lineId = lineId; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getMeasureKind() { return measureKind; } public void setMeasureKind(String measureKind) { this.measureKind = measureKind; } public String getIndustry() { return industry; } public void setIndustry(String industry) { this.industry = industry; } public String getInVoltage() { return inVoltage; } public void setInVoltage(String inVoltage) { this.inVoltage = inVoltage; } public String getOutVoltage() { return outVoltage; } public void setOutVoltage(String outVoltage) { this.outVoltage = outVoltage; } public String getCapacity() { return capacity; } public void setCapacity(String capacity) { this.capacity = capacity; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getLinkman() { return linkman; } public void setLinkman(String linkman) { this.linkman = linkman; } public String getTel() { return tel; } public void setTel(String tel) { this.tel = tel; } }

2、PowerAreaAct.java

package com.techen.masterstation.document; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import com.techen.masterstation.actionSuper.MySuperAction; import com.techen.masterstation.database.DataBase; public class PowerAreaAct extends MySuperAction { private String lineId; private String id; private String name; private String measureKind; private String industry; private String inVoltage; private String outVoltage; private String capacity; private String address; private String linkman; private String tel; private int pageNow = 1; // 頁碼數,初始爲1 private int pageSize = 10; // 頁面行數 private int intRowCount;// 總行數 private int intPageCount;// 總頁數 private int intMaxPage; public static ArrayList<PowerArea> PowerAreaRecs = new ArrayList(); public String getLineId() { return lineId; } public void setLineId(String lineId) { this.lineId = lineId; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getMeasureKind() { return measureKind; } public void setMeasureKind(String measureKind) { this.measureKind = measureKind; } public String getIndustry() { return industry; } public void setIndustry(String industry) { this.industry = industry; } public String getInVoltage() { return inVoltage; } public void setInVoltage(String inVoltage) { this.inVoltage = inVoltage; } public String getOutVoltage() { return outVoltage; } public void setOutVoltage(String outVoltage) { this.outVoltage = outVoltage; } public String getCapacity() { return capacity; } public void setCapacity(String capacity) { this.capacity = capacity; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getLinkman() { return linkman; } public void setLinkman(String linkman) { this.linkman = linkman; } public String getTel() { return tel; } public void setTel(String tel) { this.tel = tel; } public int getPageNow() { return pageNow; } public void setPageNow(int pageNow) { this.pageNow = pageNow; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getIntRowCount() { return intRowCount; } public void setIntRowCount(int intRowCount) { this.intRowCount = intRowCount; } public int getIntPageCount() { return intPageCount; } public void setIntPageCount(int intPageCount) { this.intPageCount = intPageCount; } public int getIntMaxPage() { return intMaxPage; } public void setIntMaxPage(int intMaxPage) { this.intMaxPage = intMaxPage; } public String show() throws Exception { PowerAreaRecs.clear(); DataBase db = DataBase.getInstance(); ResultSet rst = null; rst = db.openSql("select count(id) from T_POWERAREA"); if(rst != null) { rst.next();//遊標指向第一行 intRowCount=rst.getInt(1);//取得總行數 } if(intRowCount < 1) { return ERROR; } intPageCount = (intRowCount % pageSize == 0) ? (intRowCount / pageSize) : (intRowCount / pageSize + 1);// 計算出總頁數 if (pageNow < 1) { pageNow = 1; } if (pageNow > intPageCount) { pageNow = intPageCount; } intMaxPage = intPageCount; int iPast; iPast = (pageNow - 1) * pageSize; String sql = "select * from ( select * from T_POWERAREA where id not in (select id from (select id from T_POWERAREA order by id) WHERE ROWNUM <= " + iPast + "" + " )" + " order by id asc)" + " where rownum <= " + pageSize; rst = db.openSql(sql); if(rst != null) { while(rst.next()) { PowerArea tmpdoc = new PowerArea(); tmpdoc.setId(rst.getString("ID")); tmpdoc.setName(rst.getString("NAME")); tmpdoc.setLineId(rst.getString("LINEID")); tmpdoc.setMeasureKind(rst.getString("MEASUREKIND")); tmpdoc.setIndustry(rst.getString("INDUSTRY")); tmpdoc.setInVoltage(rst.getString("INVOLTAGE")); tmpdoc.setOutVoltage(rst.getString("OUTVOLTAGE")); tmpdoc.setCapacity(rst.getString("CAPACITY")); tmpdoc.setAddress(rst.getString("ADDRESS")); tmpdoc.setLinkman(rst.getString("LINKMAN")); tmpdoc.setTel(rst.getString("TEL")); PowerAreaRecs.add(tmpdoc); } rst = null; if (PowerAreaRecs.size() > 0) { request.setAttribute("PowerAreaRecs", PowerAreaRecs); return SUCCESS; } else { return ERROR; } } else { return ERROR; } } /**@author GavinPan * 添加輸入校驗 * @throws SQLException */ public void validateAdd() throws SQLException{ if(null==id || "".equals(id.trim())){ this.addFieldError("id", "臺區號輸入有誤!"); } if(null==name || "".equals(name.trim()) || name.length()>20){ this.addFieldError("name", "臺區名稱輸入有誤!"); } if(null==lineId || "".equals(lineId.trim())){ this.addFieldError("lineId", "所屬線路號輸入有誤!"); } if(null==capacity || "".equals(capacity.trim())){ this.addFieldError("capacity", "容量輸入有誤!"); } if(null==address || "".equals(address.trim())){ this.addFieldError("address", "地址輸入有誤!"); } String id = request.getParameter("id"); DataBase db = DataBase.getInstance(); ResultSet rst = null; rst = db.openSql("select * from T_POWERAREA where ID =" + id); if(rst != null) { if(rst.next()) { this.addFieldError("id", "該臺區號信息已經存在！"); } } } public String add() throws Exception { if("".equals(linkman.trim())) { this.setLinkman(null); } if("".equals(tel.trim())) { this.setTel(null); } String sqltext = "insert into T_POWERAREA (ID, NAME, LINEID, MEASUREKIND, INDUSTRY, INVOLTAGE," + "OUTVOLTAGE, CAPACITY, ADDRESS, LINKMAN, TEL) values ('" + id + "','" + name + "','" + lineId + "','" + measureKind + "','" + industry + "','" + inVoltage + "','" + outVoltage + "','" + capacity + "','" + address + "','" + linkman + "','" + tel + "' )"; DataBase db = DataBase.getInstance(); db.executeSql(sqltext); return SUCCESS; } public String eshow() throws Exception { PowerArea EditInfo = new PowerArea(); String edtId = request.getParameter("id"); DataBase db = DataBase.getInstance(); ResultSet rst = null; rst = db.openSql("select * from T_POWERAREA where ID =" + edtId); if(rst != null) { while(rst.next()) { EditInfo.setId(rst.getString("ID")); EditInfo.setName(rst.getString("NAME")); EditInfo.setLineId(rst.getString("LINEID")); EditInfo.setMeasureKind(rst.getString("MEASUREKIND")); EditInfo.setIndustry(rst.getString("INDUSTRY")); EditInfo.setInVoltage(rst.getString("INVOLTAGE")); EditInfo.setOutVoltage(rst.getString("OUTVOLTAGE")); EditInfo.setCapacity(rst.getString("CAPACITY")); EditInfo.setAddress(rst.getString("ADDRESS")); EditInfo.setLinkman(rst.getString("LINKMAN")); EditInfo.setTel(rst.getString("TEL")); } rst = null; } request.setAttribute("EdtRec", EditInfo); return SUCCESS; } /**@author GavinPan * 修改輸入校驗 */ public void validateEdit(){ if(null==id || "".equals(id.trim())){ this.addFieldError("id", "臺區號輸入有誤!"); } if(null==name || "".equals(name.trim()) || name.length()>20){ this.addFieldError("name", "臺區名稱輸入有誤!"); } if(null==lineId || "".equals(lineId.trim())){ this.addFieldError("lineId", "所屬線路號輸入有誤!"); } if(null==capacity || "".equals(capacity.trim())){ this.addFieldError("capacity", "容量輸入有誤!"); } if(null==address || "".equals(address.trim())){ this.addFieldError("address", "地址輸入有誤!"); } } public String edit() throws Exception { String sqltext = "update T_POWERAREA set ID = '" + id + "', NAME = '" + name + "'," + "LINEID = '" + lineId + "'," + "MEASUREKIND = '" + measureKind + "'," + "INDUSTRY = '" + industry + "'," + "INVOLTAGE = '" + inVoltage + "'," + "OUTVOLTAGE = '" + outVoltage + "'," + "CAPACITY = '" + capacity + "'," + "ADDRESS = '" + address + "'," + "LINKMAN = '" + linkman + "'," + "TEL = '" + tel + "' where ID ='" + id + "'"; DataBase db = DataBase.getInstance(); db.executeSql(sqltext); return SUCCESS; } public String delete() throws Exception { String id = request.getParameter("id"); String sqltext = "delete from T_POWERAREA where ID =" + id; DataBase db = DataBase.getInstance(); db.executeSql(sqltext); return SUCCESS; } }

3、powerarea_add.jsp（注意：<s:fielderror cssStyle="color=red"></s:fielderror>部分）

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8" %> <%@page contentType="text/html; charset=UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>添加集中器信息</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <meta http-equiv="Content-Type" content="text-html;" encoding=gb2312"> <!-- <link rel="stylesheet" type="text/css" href="styles.css" mce_href="styles.css"> --> <link type="text/css" rel="stylesheet" href="css/style.css" mce_href="css/style.css"> </head> <body background="images/back.gif"> <center> <table border="0" width="960" cellspacing="0" cellpadding="0" bgcolor="white"> <tr> <td colspan="2"><%@ include file="top.jsp"%></td> </tr> <tr> <td width="240" height="500" valign="top" align="center"><jsp:include page="left.jsp"/></td> <td width="720" height="500" align="center" valign="top"> <table border="0" width="100%" height="100%" cellspacing="0" cellpadding="0" > <tr> <td colspan="3" height="30" background="images/tabletitle.gif"> 當前位置：<a href="main.jsp" mce_href="main.jsp">首頁</a> > <a href="ConcentratorShowAct.action" mce_href="ConcentratorShowAct.action">參數設置</a> > <a href="ConcentratorShowAct.action" mce_href="ConcentratorShowAct.action">集中器信息</a> > 添加集中器信息 >>></td> </tr> <tr> <td width="8" background="images/left.gif" ></td> <td width="704" valign="top" align="center"> <table width="50%"> <tr> <td align="left"> <s:fielderror cssStyle="color=red"></s:fielderror> </td> </tr> </table> <s:form action="ConcentratorAddAct" theme="simple"> <table width="98%" border="1" CellSpacing="0" CellPadding="0" bordercolor="#FFFFFF" bordercolordark="#A6B9DD" bordercolorlight="#FFFFFF"> <tr> <td height="25" width="20%" align="center"><s:label value="集中器地址"></s:label></td> <td width="30%"><s:textfield name="con_addr" cssStyle="width:150px"></s:textfield> </td> <td width="20%" align="center" ><s:label value="名稱"></s:label></td> <td width="30%"><s:textfield name="con_name" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="類別"></s:label></td> <td><s:textfield name="con_type" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="Sim卡號"></s:label></td> <td><s:textfield name="sim_no" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="接線方式"></s:label></td> <td><s:textfield name="line_mode" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="Apn"></s:label></td> <td><s:textfield name="apn" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="Ip地址"></s:label></td> <td><s:textfield name="ip" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="端口"></s:label></td> <td><s:textfield name="port" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="輔助信道1 Ip地址"></s:label></td> <td><s:textfield name="ip1" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="輔助信道1端口"></s:label></td> <td><s:textfield name="port1" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="輔助信道2 Ip地址"></s:label></td> <td><s:textfield name="ip2" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="輔助信道2端口"></s:label></td> <td><s:textfield name="port2" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="對時規則"></s:label></td> <td><s:textfield name="check_rule" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="對時間隔小時數"></s:label></td> <td><s:textfield name="check_interval" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="對時小時"></s:label></td> <td><s:textfield name="check_hour" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="對時分鐘"></s:label></td> <td><s:textfield name="check_minute" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td height="25" align="center"><s:label value="告警屏蔽字"></s:label></td> <td><s:textfield name="alarm_str" cssStyle="width:150px"></s:textfield> </td> <td align="center"><s:label value="恢復時間"></s:label></td> <td><s:textfield name="resume_minute" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td align="center"><s:label value="登錄apn的用戶名"></s:label></td> <td><s:textfield name="apn_user" cssStyle="width:150px"></s:textfield> </td> <td height="25" align="center"><s:label value="登錄apn的密碼"></s:label></td> <td><s:textfield name="apn_pwd" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td align="center"><s:label value="終端軟件版本"></s:label></td> <td><s:textfield name="soft_ver" cssStyle="width:150px"></s:textfield> </td> <td height="25" align="center"><s:label value="終端硬件版本"></s:label></td> <td><s:textfield name="hard_ver" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td align="center"><s:label value="採集器數目"></s:label></td> <td><s:textfield name="collector_num" cssStyle="width:150px"></s:textfield> </td> <td height="25" align="center"><s:label value="心跳間隔時間"></s:label></td> <td><s:textfield name="heart_minute" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td align="center"><s:label value="資產編號"></s:label></td> <td><s:textfield name="asset_no" cssStyle="width:150px"></s:textfield> </td> <td height="25" align="center"><s:label value="出廠編號"></s:label></td> <td><s:textfield name="product_no" cssStyle="width:150px"></s:textfield> </td> </tr> <tr> <td align="center"><s:label value="任務狀態標記"></s:label></td> <td><s:select list="{'使用','未使用'}" name="task_str" cssStyle="width:150px"></s:select></td> <td height="25" align="center"><s:checkbox name="isDisplay" value="true" fieldValue="true"/><s:label value="是否顯示報文"></s:label></td> <td><s:checkbox name="isSave" fieldValue="true"/><s:label value="是否保存報文"></s:label></td> </tr> <tr> <td height="40" colspan="4" style="padding-left:250px" mce_style="padding-left:250px"> <s:submit value=" 增加 " ></s:submit> <s:reset value=" 重置 " ></s:reset> <input type="button" value=" 返回 " onClick="location.href='ConcentratorShowAct.action'"> </td> </tr> </table> </s:form> </td> <td width="8" background="images/left.gif" ></td> </tr> <tr> <td width="8" ></td> <td height="6" colspan="2" background="images/tablebottom.gif"></td> </tr> </table> </td> </tr> <tr> <td colspan="2" ><%@ include file="end.jsp"%></td> </tr> </table> </center> </body> </html>  

 

4、document.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="Document" extends="struts-default"> <!-- 分局 --> <action name="SubStationShowAct" class="com.techen.masterstation.document.SubStationAct" method="show"> <result name="success">substation.jsp</result> <result name="error">substation_error.jsp</result> </action> <action name="SubStationAddAct" class="com.techen.masterstation.document.SubStationAct" method="add"> <result name="success" type="redirect-action">SubStationShowAct</result> <result name="input">substation_add.jsp</result> </action> <action name="SubStationDelAct" class="com.techen.masterstation.document.SubStationAct" method="delete"> <result name="success" type="redirect-action">SubStationShowAct</result> </action> <action name="SubStationEdtShowAct" class="com.techen.masterstation.document.SubStationAct" method="eshow"> <result name="success">substation_edt.jsp</result> </action> <action name="SubStationEdtAct" class="com.techen.masterstation.document.SubStationAct" method="edit"> <result name="success" type="redirect-action">SubStationShowAct</result> <result name="input">substation_edt.jsp</result> </action> <!-- 線路 --> <action name="LineShowAct" class="com.techen.masterstation.document.LineAct" method="show"> <result name="success">line.jsp</result> <result name="error">line_error.jsp</result> </action> <action name="LineAddAct" class="com.techen.masterstation.document.LineAct" method="add"> <result name="success" type="redirect-action">LineShowAct</result> <result name="input">line_add.jsp</result> </action> <action name="LineDelAct" class="com.techen.masterstation.document.LineAct" method="delete"> <result name="success" type="redirect-action">LineShowAct</result> </action> <action name="LineEdtShowAct" class="com.techen.masterstation.document.LineAct" method="eshow"> <result name="success">line_edt.jsp</result> </action> <action name="LineEdtAct" class="com.techen.masterstation.document.LineAct" method="edit"> <result name="success" type="redirect-action">LineShowAct</result> <result name="input">line_edt.jsp</result> </action> <!-- 臺區 --> <action name="PowerAreaShowAct" class="com.techen.masterstation.document.PowerAreaAct" method="show"> <result name="success">powerarea.jsp</result> <result name="error">powerarea_error.jsp</result> </action> <action name="PowerAreaAddAct" class="com.techen.masterstation.document.PowerAreaAct" method="add"> <result name="success" type="redirect-action">PowerAreaShowAct</result> <result name="input">powerarea_add.jsp</result> </action> <action name="PowerAreaDelAct" class="com.techen.masterstation.document.PowerAreaAct" method="delete"> <result name="success" type="redirect-action">PowerAreaShowAct</result> </action> <action name="PowerAreaEdtShowAct" class="com.techen.masterstation.document.PowerAreaAct" method="eshow"> <result name="success">powerarea_edt.jsp</result> </action> <action name="PowerAreaEdtAct" class="com.techen.masterstation.document.PowerAreaAct" method="edit"> <result name="success" type="redirect-action">PowerAreaShowAct</result> </action> <!-- Add actions here --> </package> </struts>

 

5、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> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="false" /> <include file="system.xml"/> <include file="document.xml"/> <include file="param.xml"/> <!-- Add packages here --> </struts>

 

6、MySuperAction.java

 package com.techen.masterstation.actionSuper; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.interceptor.ApplicationAware; import org.apache.struts2.interceptor.ServletRequestAware; import org.apache.struts2.interceptor.ServletResponseAware; import org.apache.struts2.interceptor.SessionAware; import com.opensymphony.xwork2.ActionSupport; public class MySuperAction extends ActionSupport implements ApplicationAware, ServletRequestAware, ServletResponseAware, SessionAware { protected HttpServletRequest request; protected HttpServletResponse reponse; protected Map session; public void setApplication(Map session) { this.session=session; } public void setServletRequest(HttpServletRequest request) { this.request = request; } public void setServletResponse(HttpServletResponse reponse) { this.reponse = reponse; } public void setSession(Map session) { this.session = session; } }

 

今天先寫這第一種方式吧，有點累，公司今天突然告知搞了近半年已完成大半的項目要中止了，有些鬱悶啊！改日我再將第二種方式配置xml文件部分補上。