Orange Script 通过JDBC连接数据库的例子

详细代码，请看这里

var conn = $.java.sql.DriverManager.getConnection("jdbc:mysql://localhost/test", "root", "");

var dropTable = function() {
    var stmt = conn.createStatement();
    stmt.execute("DROP TABLE IF EXISTS foo");
    stmt.close();
};

var createTable = function() {
    var stmt = conn.createStatement();
    stmt.execute("CREATE TABLE foo (city VARCHAR(30), state VARCHAR(2), population INT)");
    stmt.close();
};

var filldata = function(city, state, population) {
    var stmt = conn.prepareStatement("INSERT INTO foo(city, state, population) VALUES (?,?,?)");
    stmt.setString(1, city);
    stmt.setString(2, state);
    stmt.setInt(3, population);
    stmt.executeUpdate();
    stmt.close();
};

var query = function() {
    var stmt = conn.prepareStatement("SELECT * FROM foo WHERE state = ?");
    stmt.setString(1, "WA");
    var rs = stmt.executeQueryPrepared();
    while (rs.next()) {
        println(rs.getString("city"));
    }
    rs.close();
    stmt.close();
};

// delete cities in CA
var deleteCA = function() {
    var stmt = conn.prepareStatement("DELETE FROM foo WHERE state = ?");
    stmt.setString(1, "CA");
    stmt.executeUpdate();
    stmt.close();
};

var doublePopulation = function() {
    var stmt = conn.prepareStatement("UPDATE foo SET population = population * 2");
    stmt.executeUpdate();
    stmt.close();
};

dropTable();
createTable();

filldata("Bellevue", "WA", 122);
filldata("Sammamish", "WA", 45);
filldata("San Francisco", "CA", 825);

println("Cities in WA");
println("=================");
query();

println("Double population for all cities");
doublePopulation();

println("Cities in CA has been deleted");
deleteCA();

conn.close();