[java面试]宇信易诚广州分公司 java笔试题目回顾录

本文地址：http://blog.csdn.net/sushengmiyan/article/details/28479895

作者：sushengmiyan

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题目1.数据库相关

1.报文格式定义例如以下：

20字符长的姓名+1字符长的性别+3字符长的年龄

姓名长度不足20的右边补空格性别中0表示男，1表示女

年龄不足3字符的左边补0

如：

denny 0026

这一段报文解析后表示姓名为denny性别为男，年龄为26

数据库表结构例如以下：

create table test

(

name varchar(20) primary key,

sex varchar(1),

age varchar(3)

);

java

一，写一个方法

public String makePackage(String name, int sex, int age);

由输入的姓名，性别。年龄返回相应的报文

二、写一个方法

public void parserPackage(String package);

由输入的报文，解析后写入数据库表test中.

sql

从test中取出年龄大于16岁的前10条记录

从test中取出给定name的记录的sex,age以及按年龄排的名次

题目2javascript相关

页面例如以下

<html>

  <body>

    <input id="package" type = "text"/>

    <input type="button" onclick="parse()"/>

    <input id="name" type="text"/>

    <input id="sex" type="text"/>

    <input id="age" type="text"/>

  </body>

</html>

用javascript 实现方法parser() 当点击button的时候，依照报文格式解析id为package的文本域的内容，并将解析完的结果写入到对应的id的文本域里。

题目3css相关

用css给上面的button加上背景图片

web

请求页面例如以下：

<html>

<body>

<form action = "testServer">

<input name = "package"type="text"/>

<input type="submit"/>

</form>

</body>

</html>

写一个servlet调用parsePackage方法将请求页面表单域中的package的值解析并写入数据库。将此servlet配置到tomcat中

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答案

java答案例如以下：</p><pre code_snippet_id="376946" snippet_file_name="blog_20140604_2_2610834" name="code" class="javascript">import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.sql.Statement;

public class YuchengFacetoFace

{

	//报文格式定义例如以下：

    //	20字符长的姓名+1字符长的性别+3字符长的年龄

    //	姓名长度不足20的右边补空格 性别中0表示男，1表示女

    //	年龄不足3字符的左边补0

    //	如：

    //	denny     0026

    //	这一段报文解析后表示姓名为denny性别为男，年龄为26

	public String makePackage(String name, int sex, int age)

	{

		//输入的合法性校验未做

		String Result = "";

		int length = name.length();

		if (length < 20)

		{

			int cutLength = 20 - length;

			for (int i = 0; i < cutLength; i++)

			{

				Result += " ";

			}

			Result += name;

		}

		Result += sex;

		//099的情况呢？

		if (age < 10)

		{

		  Result = Result + 0 + 0 + age;

		}

		else

		if (age < 100)

		{

			Result = Result + 0 + age;

		}

		else

		{

			Result += age;

		}

		return Result;

	}

	//由输入的报文，解析后写入数据库表test中.

	public void parserPackage(String Package)

	{

		String name = Package.substring(0, 19);;

		int sex = Integer.parseInt(Package.substring(20, 20));

		int age = Integer.parseInt(Package.substring(21, 23));

		/*

		 * insert into test values(name, sex, age);

		 * select top 10 * from test where age < 16

		 * select * from test where name = name odered by age

		 */

	}

	//连接MYSQL数据库并创建数据库和表

	public static void CreateDataBase() throws SQLException, ClassNotFoundException

	{

	    String driver = "com.mysql.jdbc.Driver";

	    Class.forName(driver);//载入mysql数据库，用Class.forName（"驱动名称"）进行载入

		//第二步，创建数据库连接，将数据库与当前文件连接起来。后面才干够对数据库进行操作

		//格式：

		String url = "jdbc:mysql://localhost:3306/Yuchengtech";//建立数据库连接地址

		Connection conn =  DriverManager.getConnection(url, "root", "admin");//连接数据库

		Statement s = conn.createStatement();

		String SQL = "insert into test(name, sex,age) values(" +'"'+ "susheng" + '"' +  ", 1, 25);";

		s.execute(SQL);

	}

	public static void main(String[] args) throws SQLException, ClassNotFoundException

	{

//		YuchengFacetoFace yff = new YuchengFacetoFace();

//		System.out.println(yff.makePackage("susheng", 0, 12));

		CreateDataBase();

	}

}

二、js的代码答案

<html>

  <head>

    <script language="javascript">

      function parse()

      {

         var content = document.getElementById("package").value;

         var name = content.substring(1,20).trim();

         var sex = content.substring(20,21);

         var age = content.substring(21,24);

         document.getElementById("name").value = name;

         document.getElementById("sex").value = sex;

         document.getElementById("age").value = age;

      }

    </script>

  </head>

  <body>

    <input id="package" type = "text"/>

    <input type="button" onclick="parse()"/>

    <input id="name" type="text"/>

    <input id="sex" type="text"/>

    <input id="age" type="text"/>

  </body>

</html>

css非常easy 有个background-image:url(a.jpg);

web的答案

package com.yuchengtech;

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 TestServer extends HttpServlet {

	/**

	 * The doGet method of the servlet. <br>

	 *

	 * This method is called when a form has its tag value method equals to get.

	 *

	 * @param request the request send by the client to the server

	 * @param response the response send by the server to the client

	 * @throws ServletException if an error occurred

	 * @throws IOException if an error occurred

	 */

	public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		String Src = request.getParameter("package");

		YuchengFacetoFace yff = new YuchengFacetoFace();

		yff.parserPackage(Src);

	}

	/**

	 * The doPost method of the servlet. <br>

	 *

	 * This method is called when a form has its tag value method equals to post.

	 *

	 * @param request the request send by the client to the server

	 * @param response the response send by the server to the client

	 * @throws ServletException if an error occurred

	 * @throws IOException if an error occurred

	 */

	public void doPost(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		String Src = request.getParameter("package");

		YuchengFacetoFace yff = new YuchengFacetoFace();

		yff.parserPackage(Src);

	}

}