实现B/S架构，输入一串字母或数字，将它们按从小到大排序，排序算法在服务端实现。
以下是实现：
Test.java
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Test extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//获取页面中输入框的数据
String str = request.getParameter("str");
//将字符串转换为char数组
char[] ch = str.toCharArray();
//利用冒泡排序进行排序
for(int i = 0;i<ch.length-1;i++){
for(int j =0;j<ch.length-i-1;j++){
if(ch[j]>ch[j+1]){
char temp;//定义一个中间变量
temp = ch[j];
ch[j] = ch[j+1];
ch[j+1]= temp;
}
}
}
//将char数组转换为String 字符串
String ss = String.valueOf(ch);
request.setAttribute("sss", ss);
request.getRequestDispatcher("/index.jsp").forward(request, response);
}
}
jsp页面代码：
<%-- 拿到保存到request中的字符串sss--%>
<h1>${sss }</h1>
<form action="/test/Test"method="get">
<input type="text" name="str"/>
<input type="submit" id="btn" value="check"/>
</form>