RAD补全程序题补程序

1、 The project Test fllowing has only one servlet, and its deployment descriptor is web.xml. Aweb.xmlTestServlet TestServlet com.ibm.exam.servlet. TestServlet AutoSavetrue TestServlet Testpackage com.ibm.exam.servlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.ServletException;import java.io.IOException;import java.io.PrintWriter;public class TestServlet extends HttpServlet String autoSave;/ servlets init methodpublic void init() throws ServletException autoSave = getInitParameter(AutoSave); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException response.setStatus(HttpServletResponse.SC_OK); / default response.setContentType(text/html); / defaultPrintWriter out = response.getWriter();out.println(Testservlet); out.println();out.println (The value of init-param AutoSave is: + autoSave);out.println(); public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException doGet(request, response); Bweb.xml SampleServlet SampleServlet com.ibm.exam.servlet. SampleServlet Namenobody SampleServlet Samplepackage com.ibm.exam.servlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.ServletException;import java.io.IOException;import java.io.PrintWriter;public class SampleServlet extends HttpServlet String name;/ servlets init methodpublic void init() throws ServletException name = getInitParameter(Name); public void doPost (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException response.setStatus(HttpServletResponse.SC_OK); / default response.setContentType(text/html); / defaultPrintWriter out = response.getWriter();out.println(Testservlet); out.println();out.println (The value of init-param Name is: + name);out.println(); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException doPost(request, response); 2下面的程序由JSP+Servlet+JavaBean组成，Servlet用来处理请求。Apackage beans;import java.sql.*;public class BookBean String key=;public void setKey(String s)key=s;trybyte b=key.getBytes(ISO-8859-1);key=new String(b);catch(Exception e) public String getKey () return key;public StringBuffer selectKey()String key,bName;Connection con=null;Statement sql=null;ResultSet rs=null;StringBuffer buffer=new StringBuffer();tryClass.forName(sun.jdbc.odbc.JdbcOdbcDriver);catch(ClassNotFoundException e)System.out.println(forName);trycon=DriverManager.getConnection(jdbc:odbc:BookOdbc,);sql=con.createStatement();String query=select bName from book where bName like +key+;rs=sql.executeQuery(query);if(rs!=null)while(rs.next()bName=rs.getString(1);buffer.append(书名+ bName +，);else buffer.append(没有相应的记录);con.close();return buffer;catch(SQLException e)test.jsp 请输入查询关键字 SearchServletpackage servlets;import java.io.IOException;import beans.*;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class SearchServletextends HttpServlet public SearchServlet() super();public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException String S=new String(request.getParameter(key);StringBuffer book=new BookBean().selectKey(S);request.setAtrribute(BOOK, book);request.getRequestDispatcher(/index.jsp).forward(request, response); Bpackage exp;import java.sql.*;public class StuBean String key=;public void setName(String s)name=s;trybyte b=key.getBytes(ISO-8859-1);key=new String(b);catch(Exception e) public String getName () return key;public StringBuffer selectName ()String name, sName;Connection con=null;Statement sql=null;ResultSet rs=null;StringBuffer buffer=new StringBuffer();tryClass.forName(sun.jdbc.odbc.JdbcOdbcDriver);catch(ClassNotFoundException e)System.out.println(forName);trycon=DriverManager.getConnection(jdbc:odbc:StuOdbc,);sql=con.createStatement();String query=select sName from Student where sName like + name +;rs=sql.executeQuery(query);if(rs!=null)while(rs.next()sName =rs.getString(1);buffer.append(名字中包含这个字的学生名字有+ sName +，);else buffer.append(没有相应的记录);con.close();return buffer;catch(SQLException e)下面的程序由JSP+Servlet+JavaBean组成，SearchServlet用来处理请求。Search.jsp 请输入查询关键字 StuServlet package servlets;import java.io.IOException;import beans.*;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class StuServlet extends HttpServlet public StuServlet () super();public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException String N=new String(request.getParameter(name);StringBuffer name =new StuBean().selectName (N);request.setAttribute(NAME, name);request.getRequestDispatcher(/index.jsp).forward(request, response); 3、Jsp+javabeanexp.jsp图书查询输入书名： 查询到的记录BStu.jsp学生姓名查询输入关键字： 查询到的记录1、 给出Servlet配置文件，读初始化参数，并用Servlet输出值。掌握：配置文件web.xml中对Servlet的配置（参考第六章）；写：Servlet名；获取初始化参数的方法；识别doGet还是doPost方法；