Visual Studio 2013 갑자기 느려질때

Microsoft SQL Server 를 지우면서

관련 프로그램을 모두 지웠더니

Visual Studio 가 엄청 느려졌다

재설치를 하려고 보니

다음과 같은 에러 발생

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

import org.restlet.Application;
import org.restlet.Request;
import org.restlet.Response;
import org.restlet.Restlet;
import org.restlet.Server;
import org.restlet.data.MediaType;
import org.restlet.data.Protocol;
import org.restlet.routing.Router;

public class test extends Application{
	public static Connection makeConnection() {
		String url = "jdbc:mysql://localhost/book_db";
		String id = "root";
		String password = "green";
		Connection con = null;
		try {
			Class.forName("com.mysql.jdbc.Driver");
			System.out.println("드라이버 적재 성공");
			con = DriverManager.getConnection(url, id, password);
			System.out.println("데이터베이스 연결 성공");
		} catch (ClassNotFoundException e) {
			System.out.println("드라이버를 찾을 수 없습니다.");
		} catch (SQLException e) {
			System.out.println("연결에 실패하였습니다.");
		}
		return con;
	}
	public static Statement stmt;
	public static void main(String[] args) throws Exception {
		Connection con = makeConnection();
		stmt = con.createStatement();
		Server server = new Server(Protocol.HTTP, 8182);
		server.setNext(new test());
		server.start();
	}
	public static String selectBooks(Statement stmt) throws SQLException {
		ResultSet rs = stmt.executeQuery("SELECT * FROM books");
		String result = "";
		while (rs.next()) {
			int id = rs.getInt("book_id");
			String title = rs.getString("title");
			String publisher = rs.getString("publisher");
			String year = rs.getString("year");
			if( title != null)
			{
				result += id + " " + title +" " + publisher +" " + year + "\n";
			}
		}
		return result;
	}
	public static String selectBooks(Statement stmt, String name) throws SQLException {
		ResultSet rs = stmt.executeQuery("SELECT * FROM books WHERE publisher = '" + name + "'");
		String result = "";
		while (rs.next()) {
			int id = rs.getInt("book_id");
			String title = rs.getString("title");
			String publisher = rs.getString("publisher");
			String year = rs.getString("year");
			if( title != null)
			{
				result += id + " " + title +" " + publisher +" " + year + "\n";
			}
		}
		return result;
	}
	@Override
	public Restlet createInboundRoot() {
		Router router = new Router();
		router.attach("http://localhost:8182/books", restlet1);
		router.attach("http://localhost:8182/books/where/{name}", restlet2);
		router.attach("http://localhost:8182/books/insert/{title}/{publisher}/{year}/{price}", restlet3);
		//(title, publisher, year, price)
		return router;
	}

	public Restlet restlet3 = new Restlet(getContext()) {
		@Override
		public void handle(Request request, Response response) {
			// Print the user name of the requested orders
			String title = (String)request.getAttributes().get("title");
			String publisher = (String)request.getAttributes().get("publisher");
			String year = (String)request.getAttributes().get("year");
			String price = (String)request.getAttributes().get("price");
			try {
				insertBooks(stmt,title,publisher,year,price);
			} catch (SQLException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
			String message = "";
			try {
				message += selectBooks(stmt);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			response.setEntity(message, MediaType.TEXT_PLAIN);
		}

		private void insertBooks(Statement stmt, String title,
				String publisher, String year, String price) throws SQLException {
			// TODO Auto-generated method stub
			//INSERT INTO books (title, publisher, year, price)
			//VALUES('Operating System Concepts', 'Wiley', '2003', 30700);
			stmt.execute("INSERT INTO books (title, publisher, year, price)"
					+"VALUES('"+title+"','"+publisher+"','"+year+"',"+price+");");
		}
	};

	public Restlet restlet2 = new Restlet(getContext()) {
		@Override
		public void handle(Request request, Response response) {
			// Print the user name of the requested orders
			String name = (String)request.getAttributes().get("name");
			String message = "";
			try {
				message += selectBooks(stmt, name);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			response.setEntity(message, MediaType.TEXT_PLAIN);
		}
	};
	public Restlet restlet1 = new Restlet() {
		public void handle(Request request, Response response) {
			String message = "";
			try {
				message += selectBooks(stmt);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			response.setEntity(message, MediaType.TEXT_PLAIN);
		}
	};
}

1. 데이터 삽입 INSERT

INSERT INTO books (title, publisher, year, price)

  VALUES('Operating System Concepts', 'Wiley', '2003', 30700);

INSERT INTO books (title, publisher, year, price)

  VALUES('Head First PHP and MYSQL', 'OReilly', '2009', 58000);

INSERT INTO books (title, publisher, year, price)

  VALUES('C Programming Language', 'Prentice-Hall', '1989', 35000);

INSERT INTO books (title, publisher, year, price)

  VALUES('Head First SQL', 'OReilly', '2007', 43700);

2. 데이터 확인 

(지난 코드 재실행)