java - I cannot acces modelmap values in my JSP page -

java - I cannot acces modelmap values in my JSP page -

i refactoring code , ended deleting bean altogether. modelmap values getting passed correctly , displayed on jsp page presence of bean. however, pulling info straight database, cannot access values on jsp page though info getting read correctly.

i have like:-

public string viewdata(@modelattribute("") modelmap model) { connection conn = null; resultset rs = null; string driver = "com.mysql.jdbc.driver"; statement statement = null; try{ class.forname(driver); conn = drivermanager.getconnection("jdbc:mysql://localhost:3306/testing1234","root","root"); statement = conn.createstatement(); string sql = "select * testdata"; rs = statement.executequery(sql); while (rs.next()) { model.addattribute("test", rs.getstring(1)); model.addattribute("test1", rs.getstring(2)); model.addattribute("test2", rs.getstring(3)); model.addattribute("test3", rs.getstring(4)); model.addattribute("test4" ,rs.getdate(5)); } } grab (sqlexception e) { e.printstacktrace(); } grab (classnotfoundexception e) { e.printstacktrace(); }finally { seek { if (rs != null) { rs.close(); } if (statement != null) { statement.close(); } if (conn!= null) { conn.close(); } } grab (sqlexception e) { e.printstacktrace(); } } homecoming "jsppage"; }

however, in jsp page when seek accessing ${test}, empty string. there alternate way around this, can display info on jsp page?

spring handles handler method arguments handlermethodargumentresolver interface. implementation handles @modelattribute, servletmodelattributemethodprocessor, has higher priority (is registered before) implementation handles modelmap, mapmethodprocessor.

what means spring create modelmap object , set model key "". can access attribute empty key jsp , access elements through (the nested attributes add together resultset).

the best solution imo rid of @modelattribute annotation method parameter.

java jsp spring-mvc