服务端编写主要用到的工具是Sevlert语言,和myeclipse编程工具。
注册部分核心代码：
package rico_cliente;
import java.io.IOException;
import java.io.PrintWriter;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Iterator;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.omg.CORBA.Object;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;/* * http://localhost:8080/maiji/register.do?Data={"LoginName":"tom","Interesting":["game","sports"]} */public class RegisterServlet4AndroidClient extends HttpServlet { public RegisterServlet4AndroidClient() { super(); } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); /* * Data= { * "LoginName":"tom" * "Interesting":["game","sports"] * } */ String data = request.getParameter("Data"); System.out.println(data); /* json数据的解析|剥离*/ /* * json-lib解析JSON数据的核心代码 */ JSONObject object = JSONObject.fromObject(data); String loginName = object.getString("LoginName"); System.out.println("注册的登录名是："+loginName); String loginPassword = object.getString("LoginPassword"); System.out.println("注册的登录密码是："+loginPassword);// JSONArray array = object.getJSONArray("Interesting");// System.out.println("注册的兴趣爱好有：");// if(array != null){ // for (Object obj : array) { // System.out.print(obj.toString() +"\t");// }// }// for (int i = 0; i < array.length(); i++) { // // } /* * 业务处理 */ request.setCharacterEncoding("gb2312"); response.setContentType("text/heml;charset=gb2312"); response.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); ResultSet rs = null; Statement stmt = null; Connection cnn =null; /* * 响应：封装json结果 * { * "result":"success" * "errorMsg":"" * * } * { * "result":"failed" * "errorMsg":"服务器处理错误，注册失败" * * } */ /** * 返回值 * */ PrintWriter out=null; try{ String user = "root"; String password = "123456"; out=response.getWriter(); ResultJSONBean jsonBean = new ResultJSONBean(); Class.forName("com.mysql.jdbc.Driver"); System.out.println("成功加载数据库驱动程序"); cnn = DriverManager.getConnection("jdbc:mysql://localhost:3306/androidclent", user, password); stmt = cnn.createStatement(); rs = stmt.executeQuery("SELECT * FROM cloentregister where emp_name = '"+loginName+"'"); if (rs.next()) { jsonBean.setResult("failed"); jsonBean.setErrorMsg("登陆名已被使用"); JSONObject obj = JSONObject.fromObject(jsonBean); System.out.println(obj.toString()); out.print(obj.toString()); }else{ stmt.executeUpdate("INSERT INTO cloentregister(emp_name,emp_passward)VALUES('"+loginName+"','"+loginPassword+"')"); jsonBean.setResult("success"); jsonBean.setErrorMsg(""); JSONObject obj = JSONObject.fromObject(jsonBean); System.out.println(obj.toString()); out.print(obj.toString()); } /**************************************************/// rs = stmt.executeQuery("SELECT * FROM cloentregister");// while (rs.next()) { // System.out.println(rs.getString("emp_name"));// // }// jsonbean.setResult("success");// jsonbean.setErrorMsg(""); }catch(SQLException e){ e.printStackTrace(); }catch(ClassNotFoundException e){ e.printStackTrace(); }finally{ if(out!=null){ out.close(); } try { if(rs != null){ rs.close(); rs = null; } if(stmt != null){ stmt.close(); stmt = null; } if(cnn != null){ cnn.close(); cnn = null; } } catch (SQLException e) { e.printStackTrace(); } } } }登录部分核心代码：
package rico_cliente;
import java.io.IOException;
import java.io.PrintWriter;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/* * http://localhost:8080/maiji/begin.du *http://localhost:8080/maiji/begin.du?LoginName=tom&LoginPassword=123 * */public class Rico_sndddb extends HttpServlet {public Rico_sndddb() {
super(); }public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("get");
this.doPost(request, response);}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {System.out.println("post");
request.setCharacterEncoding("UTF-8");// try { // Thread.sleep(5000);// } catch (InterruptedException e) { // // TODO Auto-generated catch block// e.printStackTrace();// } /* * 取值 * */ String loginName=request.getParameter("LoginName"); String loginPassword=request.getParameter("LoginPassword"); System.out.println(loginName); System.out.println(loginPassword); //避免乱码 response.setCharacterEncoding("UTF-8"); /* * 默认的 * text/html * */ response.setContentType("text/html;charset=UTF-8"); /** * 返回值 * */ request.setCharacterEncoding("gb2312"); response.setContentType("text/heml;charset=gb2312"); response.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); ResultSet rs = null; Statement stmt = null; Connection cnn =null; PrintWriter out=null; try{ out=response.getWriter(); /** * 登陆的业务判断*/ boolean bool = false; String name; String spassword; String user = "root"; String password = "123456"; Class.forName("com.mysql.jdbc.Driver"); System.out.println("成功加载数据库驱动程序"); cnn = DriverManager.getConnection("jdbc:mysql://localhost:3306/androidclent", user, password); stmt = cnn.createStatement(); rs = stmt.executeQuery("SELECT * FROM cloentregister"); while (rs.next()) { name=rs.getString("emp_name"); spassword=rs.getString("emp_passward"); if(loginName.equals(name)&&loginPassword.equals(spassword)){ //登陆正确 bool=true; break; } } if(bool){ //登陆正确 out.print("success"); } else{ //登陆失败 out.print("failed"); } }catch(SQLException e){ e.printStackTrace(); }catch(ClassNotFoundException e){ e.printStackTrace(); }finally{ if(out!=null){ out.close(); } } }}