Eclipse axis开发WebService（访问MySQL数据库）

该文只为说明如何发布及使用WebService，并为考虑代码的设计，因此希望读者不要计较代码质量的优劣。

数据库用户名和密码都是test1，数据库名字为test，数据库test中有一个表newstable，该表中有两个属性id(int 10)和name(varchar 20)

用javaEE版的eclipse

1.      配置好Tomcat

2.      创建一个Dynamic Web Project，名为WebServiceStudy

3.      写一个service类，名为TableInfoService，其中该类引用了其他两个类(MySQLUtils和RequestInfoFromMySQL)

import java.io.Serializable;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TableInfoService implements Serializable{

	private static final long serialVersionUID = 677484458789332877L;
	private RequestInfoFromMySQL requestInfo = new RequestInfoFromMySQL();
	private String nameList[]; 
	
	public String getSingleColoumName(){
		
		return requestInfo.getSingleColoumName();
	}
	
	public String getName(String name){
		return requestInfo.getName(name);
	}
	
}

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;


/*
 * 该处的HandleMySQL负责与本地数据库连接，因此只需要修改数据库名，用户名，密码即可
 * */
public class MySQLUtils {
	
	private String driver = "com.mysql.jdbc.Driver";
	private String dbName = "test";//数据库名字
	private String ip = "127.0.0.1";
	private String url = "jdbc:mysql://127.0.0.1/";//数据库地址以及名称
	private String user = "test1";//数据库用户名
	private String password = "test1";//数据库用户密码
	private Connection conn;
	
	
	public Statement linkMySQL(){
		
		try {
			Class.forName(driver);//加载驱动程序
			conn = DriverManager.getConnection(url+dbName, user, password);//连接数据库
			if(!conn.isClosed())
				System.out.println("Succeeded connecting to the Database!");
			Statement statement = conn.createStatement();// statement用来执行SQL语句
			return statement;
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			System.err.println("HandleMySQL Class.forName出错");
			System.err.println(e.getMessage());
			e.printStackTrace();
			return null;
		}catch (SQLException e) {
			// TODO Auto-generated catch block
			System.err.println("HandleMySQL Connection出错");
			System.err.println(e.getMessage());
			//e.printStackTrace();
			return null;
		}
		
	}
	
	public PreparedStatement linkMySQL(String sql){
		
		try {
			Class.forName(driver);//加载驱动程序
			Connection conn = DriverManager.getConnection(url+dbName, user, password);//连接数据库
			if(!conn.isClosed())
				System.out.println("Succeeded connecting to the Database!");
			PreparedStatement preStatement = conn.prepareStatement(sql);// PreparedStatement用来执行SQL语句
			return preStatement;
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			System.err.println("HandleMySQL Pre Class.forName出错");
			System.err.println(e.getMessage());
			//e.printStackTrace();
			return null;
		}catch (SQLException e) {
			// TODO Auto-generated catch block
			System.err.println("HandleMySQL Pre Connection出错");
			System.err.println(e.getMessage());
			//e.printStackTrace();
			return null;
		}
		
	}
	
	public void closeMySQL(Statement statement){
		try {
			if(statement == null)
				return;
			statement.close();
			System.out.println("close the link to datebase");
			//conn.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			//e.printStackTrace();
			System.err.println("HandleMySQL Pre closeMySQL出错");
			System.err.println(e.getMessage());
		}
	}
	
	public void closeMySQL(PreparedStatement preStatement){
		try {
			if(preStatement == null)
				return;
			preStatement.close();
			System.out.println("close the link to datebase");
			//conn.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			//e.printStackTrace();
			System.err.println("HandleMySQL Pre closeMySQL出错");
			System.err.println(e.getMessage());
		}
	}
	
	
}

import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;


public class RequestInfoFromMySQL {

	private MySQLUtils mysqlUtils = null;
	private String nameList[];
	private String name;
	
	
	public String getSingleColoumName(){
		mysqlUtils = new MySQLUtils();
		Statement statement = mysqlUtils.linkMySQL();
		String sql = "select name from newstable";
		try {
			ResultSet rs = statement.executeQuery(sql);
			int i = 0;
			while(rs.next()){
				name = rs.getString(1);
				System.out.println(name);
				i++;
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			//e.printStackTrace();
			System.err.println("TableInfoService get出错");
			System.err.println(e.getMessage());
		}
		mysqlUtils.closeMySQL(statement);
		return name;
	}
	
	public String getName(String name){
		return "test1:"+name;
	}
	
}

4.      右击TableInfoService类，选择WebService下的Create WebService(如果TableInfoService类有更新，重复执行该步，并选择重写文件就行)

5.      在创建WebService的过程中，一路next就行 

6.      最后会生成TableInfoService.wsdl文件，我们就是要根据这个文件来访问WebService

7.      复制.wsdl文件中的http://localhost:8080/WebServiceStudy/services/TableInfoService，访问，会出现

8.      创建一个Java Project，名字随便

9.      编写WebServiceClientTest类

import java.net.MalformedURLException;
import java.net.URL;
import java.rmi.RemoteException;

import javax.xml.rpc.ServiceException;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;



public class WebServiceClientTest {

	/**
	 * @param args
	 * @throws AxisFault
	 */
	public static void main(String[] args) {try {
			String endpoint = "http://localhost:8080/WebServiceStudy/services/TableInfoService";
			Service service = new Service();
			Call call =  (Call)service.createCall();
			
			call.setTargetEndpointAddress(new URL(endpoint));
			call.setOperationName("getSingleColoumName");//
			
			String ret = (String)call.invoke(new Object[]{});
			System.out.println("return value is "+ret);
			} catch (ServiceException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (MalformedURLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (RemoteException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

	}
}

 

WebService项目文件结构：（将所有引用的包放入WebContent\WEB-INF\lib下，否则会出现数据库无法连接等错误）

客户端引用的包：