JDBC Spring MVCのログインに

Question

@Override 
public int getData(String username, String password) { 
    // TODO Auto-generated method stub 
    int Status = 1; 
    String sql = "select UserId from UserRegister where UserName=? and Password=? and Status=?;"; 
    int userid = jdbcTemplate.queryForObject(sql, new Object[] { username, 
      password, Status }, Integer.class); 
    if (userid != 0) { 
     return userid; 
    } else { 
     userid = 0; 
     return userid; 
    } 

} 

例外を実行中に、誤った結果サイズ例外を取得：それはかもしれあなたを助けたら

org.springframework.web.util.NestedServletException: Request 
processing failed; nested exception is 
org.springframework.dao.EmptyResultDataAccessException: Incorrect 
result size: expected 1, actual 0 
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982) 
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:644) 
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:725) 
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 

Answer 1

はそれを試してみてください。

String sql = "select UserId from UserRegister where UserName=? and Password=? and Status=?"; 
int userid = (Integer)jdbcTemplate.queryForInt(sql, new Object[] { username, 
     password, Status }, Integer.class);