添加功能分析、添加功能代码实现
添加功能分析
添加功能代码实现
public class AddUserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//设置编码
req.setCharacterEncoding("utf-8");
//获取参数
Map<String, String[]> map = req.getParameterMap();
//封装对象
User user = new User();
try {
BeanUtils.populate(user, map);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
//调用Service保存
UserService service = new UserServiceImpl();
service.addUser(user);
//跳转道userListServlet
resp.sendRedirect(req.getContextPath() + "/UserListServlet");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doGet(req, resp);
}
}
jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta charset="utf-8">
<title>增加用户</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面 任何其他内容都*必须*跟随其后-->
<title>首页</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery(Bootstrap的所有javaScrpt插件都依赖) -->
<script src="js/bootstrap.min.js"></script>
<!-- 加载Bootstrap 的所有 javaScript插件 你也可以根据需要只加载单个插件 -->
<script src="./js/bootstrap.js"></script>
<script src="text/javascript"></script>
</head>
<body>
<div class="container">
<center><h3>添加联系人页面</h3></center>
<form action="${pageContext.request.contextPath}/AddUserServlet" method="post">
<div class="form-group">
<label for="name">姓名:</label>
<input type="text" class="form-control" id="name" name="name" placeholder="请输入姓名">
</div>
<div class="form-group">
<label>性别:</label>
<input type="radio" name="gender" value="男" checked="checked"/>男
<input type="radio" name="gender" value="女"/>女
</div>
<div class="form-group">
<label for="age">年龄</label>
<input type="text" class="form-control" id="age" name="age" placeholder="请输入年龄">
</div>
<div class="form-group">
<label for="address">籍贯:</label>
<select name="address" class="form-control" id="address">
<option value="陕西">陕西</option>
<option value="北京">北京</option>
<option value="上海">上海</option>
</select>
</div>
<div class="form-group">
<label for="qq">QQ:</label>
<input type="text" class="form-control" id="qq" name="qq" placeholder="请输入qq号码">
</div>
<div class="form-group">
<label for="email">Email:</label>
<input type="text" class="form-control" id="email" name="email" placeholder="请输入邮箱地址">
</div>
<div class="form-group" style="text-align: center">
<input class="btn btn-primary" type="submit" value="提交"/>
<input class="btn btn-default" type="reset" value="重置"/>
<input class="btn btn-default" type="button" value="返回"/>
</div>
</form>
</div>
</body>
</html>
