[英]JavaScript won't run, says element is null, but code runs in fiddle
我正在使用Java配置構建一個百里香和Spring項目。 當我在jsfiiddle中嘗試此代碼時,它工作正常,但是當我嘗試在應用程序中運行它時,我得到了: TypeError: document.getElementById(...) is null
。
導入javascrips並沒有錯,源代碼可以渲染它們,而html也可以。
編碼:
HTML:
<a href="#" id="buybutton" th:id="buybutton" th:text="#{cart.buy}">Buy</a>
JavaScript:
document.getElementById('buybutton').addEventListener("click", function(e){
console.log("bought");
});
Thymeleaf配置(如果有任何重要性):
@Configuration
public class ThymeleafConfig {
@Bean
public ServletContextTemplateResolver templateResolver() {
ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
resolver.setPrefix("/WEB-INF/pages/");
resolver.setSuffix(".html");
resolver.setTemplateMode("HTML5");
resolver.setOrder(1);
resolver.setCacheable(false);
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
}
僅當DOM准備就緒時,才應添加click事件。
注意:對於jsfiddle,這是默認行為 。
document.addEventListener("DOMContentLoaded", function(event) {
document.getElementById('buybutton').addEventListener("click", function(e){
console.log("bought");
});
});
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