Struts2 Action无法获取获取表单数据错误及解决方法

来源：互联网发布：网络灰色产业有哪些编辑：程序博客网时间：2024/04/30 17:01

LoginAction.java

package org.easybooks.bookstore.action;import java.sql.*;import org.easybooks.bookstore.jdbc.MySQLConnBean;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class LoginAction extends ActionSupport{private String username;private String password;public void setUserName(String username){this.username=username;}public String getUserName(){return username;}public void setPassword(String password){this.password=password;}public String getPassword(){return password;}public String execute() throws Exception{String usr=getUsername();String pwd=getPassword();boolean validated=false;MySQLConnBean MySqlBean=new MySQLConnBean();String sql="select * from user";MySqlBean.openConn();ResultSet rs=MySqlBean.executeQuery(sql);while(rs.next()){if(rs.getString("username").equals(usr) && (rs.getString("password").compareTo(pwd)==0)){validated=true;}}rs.close();MySqlBean.closeStmt();MySqlBean.closeConn();if(validated){ActionContext.getContext().getSession().put("user",getUsername());return SUCCESS;}else{return ERROR;}}}

<%@ page language="java" contentType="text/html; charset=UTF-8"%><html><head><title><s:text name="loginPage"/></title></head><body><form action="login">            NAME:<input type="text" name="username"/><br/>           PASS:<input type="text" name="password"/><br/>            <input type="submit" value="登录"/></form></body></html>

测试过程中发现在LoginAction中只能够获得password,不能够获得username

发生错误的原因是函数名大小写出错,把getUsername写成了getUserName

由此可见此类函数的命名应该特别小心.

0 0