How to convert a Java resultset into JSON?

Question

I have a resultset as a result of a MySQL query using the JDBC connector. So my job is to convert the resultset into a JSON format. So that I can send it to the clientside a

Answer 1

It's pretty easy if you want to use Spring:

@RestController
public class MyController

  @Autowired
  private JdbcTemplate jdbcTemplate;

  @RequestMapping("/")
  List> getAll() {
    return jdbcTemplate.queryForList("select * from my_table");
  }
}

In mvc-dispatcher-servlet.xml, you'd setup your JdbcTemplate like this:

  
    ...data source config...
  

Jackson should be in your classpath (ie a Maven dependency).