java - Transaction Managment Spring framework -

-

while learning spring framework i'm on transaction management topic , while i'm not 100% against using xml i've been trying using annotations. along comes transaction management thing , instructor plops right xml file , references datasource bean created annotations

... below ...

package com.udemy.learning.main;  import java.sql.sqlexception; import javax.sql.datasource; import javax.annotation.*; import org.apache.commons.dbcp.basicdatasource; import org.springframework.beans.factory.annotation.value; import org.springframework.stereotype.component;  @component("connect") public class connections extends basicdatasource{      @value("${jdbc.user}")     private string username;      @value("${jdbc.password}")     private string password;      @value("${jdbc.driver}")     private string driverclassname;      @value("${jdbc.url}")     private string url;      public datasource connect() throws sqlexception{         super.setdriverclassname(this.driverclassname);         super.seturl(this.url);         super.setusername(this.username);         super.setpassword(this.password);          return super.createdatasource();     }      @predestroy     public void close() {         try {             super.close();             system.out.println("connection closed");         } catch (sqlexception e) {             // todo auto-generated catch block             e.printstacktrace();         }     } }

so in attempt code , annotations created transactionmanager class , used @component annotation above it. i'm sure can imagine looks won't drop here, plus i'm thinking it's rather elementary looking anyway.

so anyway, long question short...

is there way transaction management configuration way have attempted? rather strictly xml? attempt ended me error following...

bean named 'transactionmanager' must of type [org.springframework.transaction.platformtransactionmanager], of type [com.udemy.learning.main.transactionmanager]

you need bean of type platformtransactionmanager extend platformtransactionmanager in transactionmanager class. exception occuring because spring expecting transaction manager subclass of platformtransactionmanager


Comments

Post a Comment

Popular posts from this blog

c++ - OpenCV Error: Assertion failed <scn == 3 ::scn == 4> in unknown function, -

-
i read alot other solution still confused should mine... #include <opencv2/objdetect/objdetect.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <iostream> #include <stdio.h> using namespace std; using namespace cv; int main(int argc, const char** argv) { //create cascade classifier object used face detection cascadeclassifier face_cascade; //use haarcascade_frontalface_alt.xml library face_cascade.load("haarcascade_frontalface_alt.xml"); //setup video capture device , link first capture device videocapture capturedevice; capturedevice.open(0); //setup image files used in capture process mat captureframe; mat grayscaleframe; //create window present results namedwindow("outputcapture", 1); //create loop capture , find faces while (true) { //capture new image frame capturedevice >> captureframe; ...
Read more

php - render data via PDO::FETCH_FUNC vs loop -

-
i've been using 2 methods render data. the first one: function name($id,$name){ return '<div id="'.$id.'">'.$name.'</div>'; } echo implode($pdo->query("select id,name user")->fetchall(pdo::fetch_func,'name')); the second one: $users = $pdo->query("select id,name user")->fetchall(pdo::fetch_obj); foreach($users $user){ echo name($user->id,$user->name); } i don't understand how pdo::fetch_func works. tried figure out. however, not well-documented. could please explain fetch mode? , also, 1 performs better? thank you. both methods wrong , have learn how use templates , how separate business logic presentation logic. $users = $pdo->query("select id,name user")->fetchall(pdo::fetch_obj); tpl::assign('users', $users); is code business logic part. then in template <?php foreach $users $row): ?> <div id="<?=$...
Read more

The canvas has been tainted by cross-origin data in chrome only -

-
uncaught securityerror: failed execute 'getimagedata' on 'canvasrenderingcontext2d': canvas has been tainted cross-origin data i getting above error in chrome. code(following) works fine in mozilla. have not corss domain issue. why above error in chrome? var wheel_canvas, wheel_context, can_w, can_h, wheel_grd; var large_radius = 160; var small_radius = 120; var wheel_canvas = document.getelementbyid('wheel_canvas'); var wheel_context = wheel_canvas.getcontext('2d'); var can_w = $(wheel_canvas).width(); var can_h = $(wheel_canvas).height(); var centerx = can_w / 2, centery = can_h / 2; var wheel_grd = null; test('#ff0000'); function test(hex) { $('#clrpicker').css({'left': 210, 'top': 210 }); inverted = hexbw(hex); $('#color_val_show').val(hex); current_color_hex_val_selected = hex; $('#color_val_show').css({'color':inverted,'background':hex}); fillgradient...
Read more