在我的bash脚本中,我有一个字符串及其前缀/后缀.我需要从原始字符串中删除前缀/后缀.
例如,假设我有以下值:
string="hello-world"
prefix="hell"
suffix="ld"
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我如何得到以下结果?
result="o-wor"
Run Code Online (Sandbox Code Playgroud) 我有一个全新的Groovy 2.1.4安装,我想创建一个使用HTTP builder的脚本.
我在脚本的顶部添加了以下行:
@Grab(group='org.codehaus.groovy.modules.http-builder', module='http-builder', version='0.6')
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当我在GroovyConsole中运行脚本时,出现以下错误:
1 compilation error:
Exception thrown
VI 01, 2013 12:15:39 ODP. org.codehaus.groovy.runtime.StackTraceUtils sanitize
WARNING: Sanitizing stacktrace:
java.lang.RuntimeException: Error grabbing Grapes -- [download failed: commons-logging#commons-logging;1.1.1!commons-logging.jar]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
... (aso) ...
java.lang.RuntimeException: Error grabbing Grapes -- [download failed: commons-logging#commons-logging;1.1.1!commons-logging.jar]
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当我在Windows命令行上运行以下命令时:
grape -V resolve org.codehaus.groovy.modules.http-builder http-builder 0.6
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我得到了同样的错误,即:
:: problems summary ::
:::: WARNINGS
[NOT FOUND ] commons-logging#commons-logging;1.1.1!commons-logging.jar (0ms)
==== localm2: tried
file:C:\Documents and Settings\Administrator/.m2/repository/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR …Run Code Online (Sandbox Code Playgroud) 我有一个Spring + Thymeleaf项目,其中包含以下视图代码.
<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring3-3.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<title>Contacts</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="content">
<h1>Welcome to the site!</h1>
<p th:if="${loginError}">Wrong user or password</p>
<form th:action="@{/j_spring_security_check}" method="post">
<label for="j_username">Email address</label>:
<input type="text" id="j_username" name="j_username"/> <br/>
<label for="j_password">Password</label>:
<input type="password" id="j_password" name="j_password"/> <br/>
<input type="submit" value="Log in"/>
</form>
</div>
<div sec:authorize="isAuthenticated()">
User: <span sec:authentication="name">miquel</span>
</div>
</body>
</html>
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sec:authorize和sec:身份验证属性不能按预期工作 - 即使没有用户登录,也始终显示div,并且span始终显示为"miquel".
跟随我的控制器类的相关片段.
@RequestMapping(value = "/welcome.html")
public String wellcome() {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
System.out.println("username: " + …Run Code Online (Sandbox Code Playgroud) 我一直在尝试配置Gradle来管理Grails项目几个小时但没有成功.我在Stack Overflow和Internet上的其他地方找到的建议对我不起作用.
您能否告诉我有关如何配置Gradle + Grails项目的最新指示?理想情况下,它应该与当前版本的Grails(2.1.0)和Gradle(1.1)相关.
以下Groovy脚本失败并出现java.lang.ClassNotFoundException: com.mysql.jdbc.Driver异常.
@Grapes([
@Grab('mysql:mysql-connector-java:5.1.25')
])
import groovy.sql.Sql
def sql = Sql.newInstance(
'jdbc:mysql://localhost/books',
'root',
'',
'com.mysql.jdbc.Driver'
);
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我查看了存储在的JAR文件C:\Users\Dusan\.groovy\grapes\mysql\mysql-connector-java\jars\mysql-connector-java-5.1.25.jar,它包含Driver类.
有什么不对?
我正在使用Spring + Thymeleaf开发一个简单的应用程序.在其中一个页面上,我有一个需要分页的项目列表.
理想情况下,我只想将currPageNo(当前页面的数量)和numOfPages(总页数)变量发送到视图,其余的工作将在那里完成(这是一个演示问题而且无关与业务逻辑).但是,如果最干净的解决方案要求我先在控制器中进行一些计算,我会接受它作为一个小恶魔.
我想以下面的形式获取页面列表.
<Prev | 1 | ... | 3 | 4 | 5 | 6 | 7 | ... | 15 | Next>
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我只能得到以下解决方案.它有效,但我相信你会同意它非常混乱,真的很难阅读.
此外,除了currPageNo和numOfPages我不得不再向视图发送两个变量.理想的解决方案不需要我这样做.
firstPageNo = Math.max(2, currPageNo - 2)
lastPageNo = Math.min(numOfPages - 1, currPageNo + 2)
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我的代码的当前版本如下.
<ul>
<li th:if="${currPageNo > 1}">
<a th:href="@{/items.html(pageNo = ${currPageNo - 1})}" href="">< Prev</a>
</li>
<li th:class="${currPageNo == 1} ? 'selected'">
<a th:href="@{/items.html(pageNo = 1)}" th:if="${currPageNo > 1}" href="">1</a>
<span …Run Code Online (Sandbox Code Playgroud) 假设我有一个像这样的示例实体类:
public class Address {
...
}
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和相应的验证器:
@Component
public AddressValidator implements Validator {
@Override
public boolean supports(Class<?> entityClass) {
return entityClass.equals(Address.class);
}
@Override
public void validate(Object obj, Errors errors) {
...
}
}
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当我使用如下控制器时,一切正常:
@RestController
@RequestMapping("/addresses")
public class AddressController {
@Autowired
private AddressValidator validator;
@InitBinder
protected void initBinder(WebDataBinder binder) {
binder.setValidator(validator);
}
@RequestMapping(method=POST)
public Long addNewAddress(@Valid @RequestBody Address address) {
...
}
}
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但是,如果省略验证器注册部分(即以下内容),则不执行验证.
@Autowired
private AddressValidator validator;
@InitBinder
protected void initBinder(WebDataBinder binder) {
binder.setValidator(validator);
}
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必须手动注册验证器似乎毫无意义.我可以指示Spring自动查找验证器(类似于控制器的查找方式)吗?
这是一个基于Spring Boot的应用程序.
尝试提交到我的SVN存储库时,出现以下错误:
Working copy 'Z:\prace-pj\projects\other\CopyRT' locked.
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所以我运行clean up命令然后提交成功,但在响应消息的末尾,出现以下错误:
Error bumping revisions post-commit (details follow):
disk I/O error, executing statement 'RELEASE s11'
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现在,当我尝试更新存储库时,它表示它已被锁定.当我清理并尝试再次更新时,我收到如下错误:
disk I/O error, executing statement 'RELEASE s2'
sqlite: disk I/O error
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我该怎么做才能解决这个问题?
In C# "123-delete.json".CompareTo("123.json") evaluates to 1, meaning "123-delete.json" is to be sorted after "123.json".
This is unexpected for me, as according to the ASCII table . comes after -.
I tried to browse the CompareTo implementation on GitHub, but it seems this logic is implemented in a native function (InternalCompareString).
Why does the CompareTo method not follow the ASCII ordering?
Also, is there a way to view the source code for native functions such as …
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