JdbcTemplate支持哪些类型的参数绑定?

JdbcTemplate支持以下几种类型的参数绑定:

  1. 基本类型:
jdbcTemplate.update("UPDATE user SET name = ? WHERE id = ?", "John", 1);
  1. 日期类型:
Date date = new Date();
jdbcTemplate.update("UPDATE user SET birth_date = ? WHERE id = ?", date, 1);
  1. 字符串:
jdbcTemplate.update("UPDATE user SET name = ? WHERE id = ?", "John", 1); 
  1. 数组:
String[] names = {"John", "Jack", "James"};
jdbcTemplate.update("INSERT INTO user (name) VALUES (?)", names);  
  1. 集合:
List<String> names = Arrays.asList("John", "Jack", "James"); 
jdbcTemplate.update("INSERT INTO user (name) VALUES (?)", names); 
  1. 自定义对象:
User user = new User(1, "John", 30); 
jdbcTemplate.update("INSERT INTO user (id, name, age) VALUES (?, ?, ?)", 
    user.getId(), user.getName(), user.getAge());
  1. Null值:
jdbcTemplate.update("UPDATE user SET birth_date = ? WHERE id = ?", null, 1);

JdbcTemplate会根据传入参数的值自动选择使用PreparedStatement还是Statement来执行SQL,无需手动设置。所以,相比直接使用JDBC,JdbcTemplate的参数绑定更灵活简便。