文章标题
2017-06-29 22:10
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简单粗暴
1.stu.jsp
2.success.jsp
3.ccc.hut.model.Student
4.ccc.hut.action.SaveAction
这里添加了必填检验方法，会在执行系统的excute()方法之前执行。如果执行后Action类的fieldErrors中已经包含里数据校验错误信息，将把请求转发到input逻辑视图处，所以在Action配置中加入/login.jsp
5.ccc.hut.work.DBConn
6.ccc.hut.tool.MyInterceptor
自定义拦截器，对学号为asd或者ASD进行拦截（鸡肋…）
7.struts.xml
8.SaveAction-save-validate.xml
对备注是否为空进行校验（虽然现实很鸡肋…只是试试检验方法…）
9.web.xml
1.stu.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib uri="/struts-dojo-tags" prefix="sx"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<s:head theme="xhtml" />
<sx:head parseContent="true" />
<title>添加学生信息</title>
</head>
<body bgcolor="#E3E3E3">
<h3>添加学生信息</h3>
<s:form action="save" method="post" validate="true">
<table>
<tr>
<td>学号:</td>
<td><s:textfield name="xs.xh" /></td>
</tr>
<tr>
<td>姓名:</td>
<td><s:textfield name="xs.xm" /></td>
</tr>
<tr>
<td>性别:</td>
<td><s:radio name="xs.xb" list="#{1:'男', 0:'女'}" /></td>
</tr>
<tr>
<td>专业:</td>
<td><s:textfield name="xs.zy" /></td>
</tr>
<tr>
<td>出生时间:</td>
<td><sx:datetimepicker name="xs.cssj" id="cssj"
displayFormat="yyyy-MM-dd" /></td>
</tr>
<tr>
<td>备注:</td>
<td><s:textarea name="xs.bz" height="600" width="300"></s:textarea></td>
</tr>
<tr>
<td><s:submit value="添加" /></td>
<td><s:reset value="重置" /></td>
</tr>
</table>
</s:form>
</body>
</html>2.success.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>添加成功</title> </head> <body> 添加成功！ </body> </html>
3.ccc.hut.model.Student
package ccc.hut.model;
import java.sql.Date;
public class Student {
private String xh;
private String xm;
private byte xb;
private Date cssj;
private String zy;
private String bz;
public String getXh() {
return xh;
}
public void setXh(String xh) {
this.xh = xh;
}
public String getXm() {
return xm;
}
public void setXm(String xm) {
this.xm = xm;
}
public byte getXb() {
return xb;
}
public void setXb(byte xb) {
this.xb = xb;
}
public Date getCssj() {
return cssj;
}
public void setCssj(Date cssj) {
this.cssj = cssj;
}
public String getZy() {
return zy;
}
public void setZy(String zy) {
this.zy = zy;
}
public String getBz() {
return bz;
}
public void setBz(String bz) {
this.bz = bz;
}
}4.ccc.hut.action.SaveAction
package ccc.hut.action;
import ccc.hut.work.DBConn;
import ccc.hut.model.Student;
import com.opensymphony.xwork2.ActionSupport;
public class SaveAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private Student xs;
public Student getXs() {
return xs;
}
public void setXs(Student xs) {
this.xs = xs;
}
public String execute() throws Exception {
DBConn db = new DBConn();
Student stu = new Student();
stu.setXh(xs.getXh());
stu.setXm(xs.getXm());
stu.setXb(xs.getXb());
stu.setCssj(xs.getCssj());
stu.setZy(xs.getZy());
stu.setBz(xs.getBz());
if (db.saveStudent(stu)) {
return SUCCESS;
} else {
return ERROR;
}
}
public void validate(){
//如果用户名为空，就把错误信息添加到 Action 类的 fieldErrors
if(xs.getBz()==null||xs.getBz().trim().equals("")){
addFieldError("xs.bz","用户名必须填！");
}
}
}这里添加了必填检验方法，会在执行系统的excute()方法之前执行。如果执行后Action类的fieldErrors中已经包含里数据校验错误信息，将把请求转发到input逻辑视图处，所以在Action配置中加入/login.jsp
5.ccc.hut.work.DBConn
package ccc.hut.work;
import java.sql.*;
import ccc.hut.model.Student;
public class DBConn {
Connection conn;
PreparedStatement pstmt;
public DBConn(){
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn=DriverManager.getConnection("jdbc:sqlserver://localhost:1433;"+"databaseName=struct","sa","123456");
}catch(Exception e){
e.printStackTrace();
}
}
public boolean saveStudent(Student stu) {
try{
pstmt=conn.prepareStatement("insert into xsb values(?,?,?,?,?,?)");
pstmt.setString(1, stu.getXh());
pstmt.setString(2, stu.getXm());
pstmt.setByte(3, stu.getXb());
pstmt.setDate(4, stu.getCssj());
pstmt.setString(5, stu.getZy());
pstmt.setString(6, stu.getBz());
pstmt.executeUpdate();
return true;
} catch (Exception ex) {
ex.printStackTrace();
return false;
}
}
}6.ccc.hut.tool.MyInterceptor
package ccc.hut.tool;
import ccc.hut.action.SaveAction;
import com.opensymphony.xwork2.*;
import com.opensymphony.xwork2.interceptor.*;
public class MyInterceptor extends AbstractInterceptor{
/**
*
*/
private static final long serialVersionUID = 1L;
public String intercept(ActionInvocation arg0) throws Exception{
// 得到 MainAction 类对象
SaveAction action=(SaveAction)arg0.getAction();
if(action.getXs().getXh().equals("asd")||action.getXs().getXh().equals("ASD")){
return Action.INPUT;
}
// 继续执行其他拦截器或 Action 中的方法
return arg0.invoke();
}
}自定义拦截器，对学号为asd或者ASD进行拦截（鸡肋…）
7.struts.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"> <struts> <package name="default" extends="struts-default"> **<interceptors> <interceptor name="myInterceptor" class="ccc.hut.tool.MyInterceptor"></interceptor> </interceptors> <default-interceptor-ref name=""></default-interceptor-ref>** <action name="save" class="ccc.hut.action.SaveAction"> <result name="success">/success.jsp</result> <result name="error">/stu.jsp</result> <result name="input">/stu.jsp</result> <!--拦截器在result后面--！> <!--使用系统默认拦截器栈--！> <interceptor-ref name="defaultStack"></interceptor-ref> <!--配置拦截器--！> <interceptor-ref name="myInterceptor"></interceptor-ref> </action> </package> </struts>
8.SaveAction-save-validate.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0//EN" "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd"> <validators> <field name ="xs.bz" > <!--备注必填--!> <field-validator type ="requiredstring"> <!--去空格--!> <param name="trim">true</param> <!--错误提示信息--!> <message> 不显示这一段而是方法中的提示！ </message> </field-validator> </field > </field > </validators >
对备注是否为空进行校验（虽然现实很鸡肋…只是试试检验方法…）
9.web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>example2</display-name> <welcome-file-list> <welcome-file>stu.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
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