好的,这是当天最简单的问题.这是我第一次尝试Java和JSP.
我刚刚使用Eclipse编写了一个小Java应用程序.现在我想把这个小应用程序提供到一个网页中.我需要弄清楚Java应用程序和网页之间的联系.
这是我的申请:
public class PhraseOMatic {
public static void main(String[] args) {
// CREATE WORD ARRAYS
String[] wordListOne = {"24/7", "Multi-tier", "30,000 foot", "B-to-B", "win-win", "front-end", "back-end", "web-based"};
String[] wordListTwo = {"empowered", "sticky", "concentric", "distributed", "leveraged", "shared", "accelerated", "aligned"};
String[] wordListThree = {"process", "tipping point", "mindshare", "mission", "space", "paradigm", "portal", "vision"};
// CALCULATE ARRAY LENGTHS
int oneLength = wordListOne.length;
int twoLength = wordListTwo.length;
int threeLength = wordListThree.length;
// PRINT OUT THE PHRASE
int i = 1;
while (i < 10) {
// GENERATE RANDOM NUMBERS
int rand1 = (int) (Math.random() * oneLength);
int rand2 = (int) (Math.random() * twoLength);
int rand3 = (int) (Math.random() * threeLength);
// BUILD A PHRASE
String phrase = wordListOne[rand1] + " " + wordListTwo[rand2] + " " + wordListThree[rand3];
// PRINT OUT PHRASE
System.out.println("What we need is a " + phrase + ".");
i = i + 1;
}
}
}
如何将已编译的应用程序呈现为网页？接下来我需要采取哪些步骤？
谢谢!!!
1)您必须使用一些返回某些结果的方法来定义一个类.例如
package example;
public class WordLength {
private String word="";
public int length=0;
public WordLength(){}
public void setWord(String w){
word = w;
length = word.length();
}
public String getWord(){
return word;
}
public int getLength(){
return length;
}
}
2)你必须编译java文件并生成一个.class.您可以使用该命令执行此操作javac.否则你可以查看eclipse工作区的文件夹,在项目文件夹中你会发现.class从eclipse生成的文件夹.
3)将此文件放在名为的文件夹中WEB_INF\classes\example,该文件夹保留在tomcat文档文件夹的根目录中.(例子是包的名称)
4)在你的jsp文件中导入java类并使用它:
<!-- wordLegth.jsp -->
<%@ page language="java" import="java.util.*" %>
<html>
<head>
<title>Word length</title>
</head>
<body>
<jsp:useBean id="counter" scope="session" class="example.WordLength"/>
<%
String w1= request.getParameter("p1");
int l1 = 0;
counter.setWord(w1);
l1 = counter.getLength();
%>
<p> The word <%= w1 %> has <%= l1 %> characters.</p>
</body>
</html>
此示例由要求用户插入单词的表单自动调用:
<!-- form.html -->
<html>
<head>
<title>Form</title>
</head>
<body>
<form action="wordLegth.jsp">
<p> Word 1: <input name="p1"></p>
</p>
<input type="submit" value="Count">
</form>
</body>
</html>
此致,卢卡