[java面试]宇信易诚广州分公司 java笔试题目回忆录

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.报文格式定义如下：
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

数据库表结构如下：
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，年龄返回对应的报文

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

页面如下

<html><body><input id="package" type = "text"/><input type="button" οnclick="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() 当点击按钮的时候，按照报文格式解析id为package的文本域的内容，并将解析完的结果写入到相应的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
请求页面如下：
<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答案如下：</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
{//报文格式定义如下：//   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26public 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;}elseif (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);//加载mysql数据库，用Class.forName（"驱动名称"）进行加载//第二步，创建数据库连接，将数据库与当前文件连接起来，后面才可以对数据库进行操作//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" οnclick="parse()"/><input id="name" type="text"/><input id="sex" type="text"/><input id="age" type="text"/></body>
</html>

css很简单有个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);}}