小编yog*_*yog的帖子

我正在使用spring oauth2 ..以下是我的spring-security.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oauth="http://www.springframework.org/schema/security/oauth2"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:sec="http://www.springframework.org/schema/security" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/security/oauth2 http://www.springframework.org/schema/security/spring-security-oauth2-2.0.xsd
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
    http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.2.xsd 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd ">



<http pattern="/oauth/token" create-session="stateless"
    authentication-manager-ref="clientAuthenticationManager"
    xmlns="http://www.springframework.org/schema/security">
    <intercept-url pattern="/oauth/token" access="IS_AUTHENTICATED_FULLY" />
    <anonymous enabled="false" />
    <http-basic entry-point-ref="clientAuthenticationEntryPoint" />

    <custom-filter ref="clientCredentialsTokenEndpointFilter"
        after="BASIC_AUTH_FILTER" />
    <access-denied-handler ref="oauthAccessDeniedHandler" />
</http>

<!-- tell spring security what URL should be protected 
    and what roles have access to them -->

<http pattern="/protected/**" create-session="never"
    entry-point-ref="oauthAuthenticationEntryPoint"
    access-decision-manager-ref="accessDecisionManager"
    xmlns="http://www.springframework.org/schema/security">
    <anonymous enabled="false" />
    <intercept-url pattern="/protected/**" access="ROLE_USER" />
    <custom-filter ref="resourceServerFilter" before="PRE_AUTH_FILTER" />
    <access-denied-handler ref="oauthAccessDeniedHandler" …

我在表单编辑器中有一个文本框.我希望它显示字符串列表的子集,因为用户在文本框中输入字符(如果您熟悉谷歌自动建议功能,或雅虎邮件撰写).有谁知道我在哪里可以找到这些课程？代码片段非常有用.谢谢

我尝试使用以下代码

const element = document.getElementbyId('myid'); // it takes little long to render
htmlToImage.jpeg(element, { quality: 0.95 })
      .then((dataUrl) => {
        console.log(dataUrl); // this prints only data:,
})

由于 dataUrl 为空白，图像为空白。所以我尝试使用 htmlToCanvas

 html2canvas(element).then(function (canvas) {
      // Convert the canvas to blob
      canvas.toBlob(function (blob) {
    
  })

但我收到错误 Error loading image http://localhost:4200/

如何将 HTML 元素转换为图像文件？