实验六 利用Struts2实现自定义拦截器

private String name;
private String password;
private boolean role;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
<constant name="struts.enable.SlashesInActionNames" value="true" />
<constant name="struts.action.extension" value="action" />
<package name="default" extends="struts-default">
</action>
<action name="update" class="erAction"
method="update">
<result name="success">update_result.jsp</result>
<result name="login">/Login.jsp</result>
conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/Mg_book", "root", "123456");
return conn;
} catch (Exception e) {
// TODO Auto-generated catch block
<interceptors>
<interceptor name="CheckLoginInterceptor" class=".interceptor.CheckLoginInterceptor"></interceptor>
<interceptor name="CheckRegistInterceptor" class=".interceptor.CheckRegistInterceptor"></interceptor>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
<init-param>
<interceptor-ref name="defaultStack"/>
<interceptor-ref name="CheckLoginInterceptor"/>
</action>
<action name="show" class=".action.ShowAction">
<result name="success">displayAll.jsp</result>
method="updateInit">
<result name="success">update.jsp</result>
<result name="login">/Login.jsp</result>
<interceptor-ref name="defaultStack"/>
<interceptor-ref name="CheckLoginInterceptor"/>
<result name="error">F_error.jsp</result>
<result name="login">/Login.jsp</result>
<interceptor-ref name="defaultStack"/>
<interceptor-ref name="CheckLoginInterceptor"/>
<param-name>actionPackages</param-name>
<param-value>com.mycompany.myapp.actions</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<result name="error">regist_error.jsp</result>
<interceptor-ref name="defaultStack"/>
<interceptor-ref name="CheckRegistInterceptor"/>
</action>
<action name="updateInit" class="erAction"
import java.sql.DriverManager;
public class DBConn {
public static Connection conn;
public static Connection getConn(){
try {
Class.forName("com.mysql.jdbc.Driver");
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
struts.xml
<?xml vers"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
</action>
</package>
</struts>
Db
create database Mg_book;
use Mg_book;
create table users(
id int auto_increment primary key not null,
name varchar(10) not null,
values("王丫", "1234", true);
Login
package .entity;
import java.io.Serializable;
/**
* @author wdf
*
*/
public class Login implements Serializable{
private Integer id;
1、自定义拦截器，实现对注册页面上的文字信息进行过滤拦截，不允许出现字符集合中{“佛法”,”集会”,”党派”}的文字信息。如出现，则返回到注册页面，重新填写。
2、定义拦截器，实现登录检查。由于在项目开发时，需要对大多数的页面进行登录检查。当没有登录就无法进行操作，并返回到登录页面。为减少代码量利用Struts2中自定义拦截器的功能，实现登录检查。（避免不登录直接访问某个Action）
<url-pattern>/*</url-pattern>
</filter-mapping>
<display-name>WDF_INTERCEPTOR_6</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
return name;
}
public void setName(String name) {
= name;
}
public String getPassword() {
return password;