【web应用系统实践】第五章作业

仅供参考

设计一个页面，用户在上面输入圆的半径，提交后显示出圆的周长和面积，要求使用例 5-1 的 JavaBean 类。

(两个页面 + 1个Java类)

index.jsp

 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Demo5-1-1</title>
</head>
<body>
<form action="count.jsp" name="count">
    半径：<input type="text" name="radius"> <br>
    <input type="submit" value="submit">
</form>
</body>
</html>

count.jsp

 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Demo5-1-2</title>
</head>
<body>
<h1>圆</h1>
<hr>
<jsp:useBean id="pojo" class="bean.Circle" scope="request"/>
<jsp:setProperty name="pojo" property="*"/>
<h3>周长：</h3>
<jsp:getProperty name="pojo" property="perimeter"/><br>
<h3>面积：</h3>
<jsp:getProperty name="pojo" property="area"/>
</body>
</html>

Circle.java

 package bean;
 
public class Circle {
    double radius;
    double perimeter;
    double area;
 
    public void setRadius(double radius) {
        this.radius = radius;
    }
 
    public double getRadius() {
        return radius;
    }
 
    public void setPerimeter(double perimeter) {
        this.perimeter = perimeter;
    }
 
    public double getPerimeter() {
        return 2 * Math.PI * radius;
    }
 
    public void setArea(double area) {
        this.area = area;
    }
 
    public double getArea() {
        return Math.PI * radius * radius;
    }
}

设计一个注册页面register.jsp，用户填写的信息包括：姓名、性别、出生年月、民族、个人介绍等，用户单击注册按钮后将注册信息通过 output.jsp 显示出来。要求编写一个 JavaBean，封装用户填写的注册信息。

(两个页面 + 1个Java类)

 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head><title>Demo5-2-1</title>
</head>
<body>
<form name="sheet" action="output.jsp">
    <p>姓名：<input type="text" name="username" size="20"></p>
    <p>性别：<input type="radio" name="sex" value="男" checked>男
        <input type="radio" name="sex" value="女" >女</p>
    <label>出生年月：</label><input type="date" name="birth" >
    <p>民族：<select size = "1" name ="people">
        <option value="汉族" selected> 汉族 </option >
        <option value="黎族"> 黎族 </option>
        <option value="保安族"> 保安族 </option>
    </select></p>
    <p>个人简介：</p>
    <p><textarea name="des" rows="5" cols="60" ></textarea></p>
    <p><input type="submit" value="提交">
        <input type="reset" value="重置">
    </p>
</form>
</body>
</html>

output.jsp

 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Demo5-2-2</title>
</head>
<body>
<jsp:useBean id="user" class="bean.User" scope="request"/>
<jsp:setProperty name="user" property="*"/>
姓名：<jsp:getProperty name="user" property="username"/><br>
性别：<jsp:getProperty name="user" property="sex"/><br>
出生年月：<jsp:getProperty name="user" property="birth"/><br>
民族：<jsp:getProperty name="user" property="people"/><br>
个人介绍：<jsp:getProperty name="user" property="des"/><br>
</body>
</html>

User.java

 package bean;
 
public class Users {
    String username;
    String  sex;
    String  birth;
    String people;
    String des;
 
    public Users() {
    }
 
    public Users(String username, String sex, String birth, String people, String des) {
        this.username = username;
        this.sex = sex;
        this.birth = birth;
        this.people = people;
        this.des = des;
    }
 
    public String getUsername() {
        return username;
    }
 
    public void setUsername(String username) {
        this.username = username;
    }
 
    public String getSex() {
        return sex;
    }
 
    public void setSex(String sex) {
        this.sex = sex;
    }
 
    public String getBirth() {
        return birth;
    }
 
    public void setBirth(String birth) {
        this.birth = birth;
    }
 
    public String getPeople() {
        return people;
    }
 
    public void setPeople(String people) {
        this.people = people;
    }
 
    public String getDes() {
        return des;
    }
 
    public void setDes(String des) {
        this.des = des;
    }
}

posted @ 2022-11-17 20:27 ThinkStu 阅读(160) 评论(0) 编辑收藏举报

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bistu

热爱编程。

【web应用系统实践】第五章作业

(两个页面 + 1个Java类)

(两个页面 + 1个Java类)

最新评论

	<%@ page contentType="text/html;charset=UTF-8" language="java" %>
	<html>
	<head>
	<title>Demo5-1-1</title>
	</head>
	<body>
	<form action="count.jsp" name="count">
	半径：<input type="text" name="radius"> <br>
	<input type="submit" value="submit">
	</form>
	</body>
	</html>

	package bean;

	public class Circle {
	double radius;
	double perimeter;
	double area;

	public void setRadius(double radius) {
	this.radius = radius;
	}

	public double getRadius() {
	return radius;
	}

	public void setPerimeter(double perimeter) {
	this.perimeter = perimeter;
	}

	public double getPerimeter() {
	return 2 * Math.PI * radius;
	}

	public void setArea(double area) {
	this.area = area;
	}

	public double getArea() {
	return Math.PI * radius * radius;
	}
	}

	<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
	<!DOCTYPE html>
	<html>
	<head><title>Demo5-2-1</title>
	</head>
	<body>
	<form name="sheet" action="output.jsp">
	<p>姓名：<input type="text" name="username" size="20"></p>
	<p>性别：<input type="radio" name="sex" value="男" checked>男
	<input type="radio" name="sex" value="女" >女</p>
	<label>出生年月：</label><input type="date" name="birth" >
	<p>民族：<select size = "1" name ="people">
	<option value="汉族" selected> 汉族 </option >
	<option value="黎族"> 黎族 </option>
	<option value="保安族"> 保安族 </option>
	</select></p>
	<p>个人简介：</p>
	<p><textarea name="des" rows="5" cols="60" ></textarea></p>
	<p><input type="submit" value="提交">
	<input type="reset" value="重置">
	</p>
	</form>
	</body>
	</html>

	package bean;

	public class Users {
	String username;
	String sex;
	String birth;
	String people;
	String des;

	public Users() {
	}

	public Users(String username, String sex, String birth, String people, String des) {
	this.username = username;
	this.sex = sex;
	this.birth = birth;
	this.people = people;
	this.des = des;
	}

	public String getUsername() {
	return username;
	}

	public void setUsername(String username) {
	this.username = username;
	}

	public String getSex() {
	return sex;
	}

	public void setSex(String sex) {
	this.sex = sex;
	}

	public String getBirth() {
	return birth;
	}

	public void setBirth(String birth) {
	this.birth = birth;
	}

	public String getPeople() {
	return people;
	}

	public void setPeople(String people) {
	this.people = people;
	}

	public String getDes() {
	return des;
	}

	public void setDes(String des) {
	this.des = des;
	}
	}