library.stream() .map(book -> book.getAuthor()) .filter(author -> author.getAge() >= 50) .map(Author::getSurname) .map(String::toUpperCase) .distinct() .limit(15) .collect(toList())); Did you notice that as we read through the code we can describe what it’s doing line by...
Pattern compile(String regex, int flags) Compiles the given regular expression into a pattern with the given flags. boolean matches(String regex) Returns whether or not this string matches the given regular expression. String[] split(CharSequence input) Splits the given input sequence around match...
map(String::trim). filter(t -> t.length() > 1). ifPresent(this::print);This becomes tricky. Optional.map() applies given function on a value inside Optional - but only if Optional is present. Otherwise nothing happens and empty() is returned. Remember that the transformation is type-sa...
Set String[] for Runtime.exec (patch ysoserial's payloads) Shell Commands Converter How it works: https://blog.srcclr.com/commons-collections-deserialization-vulnerability-research-findings/ http://gursevkalra.blogspot.ro/2016/01/ysoserial-commonscollections1-exploit.html ...
```java String username = userInput.replaceAll("[^a-zA-Z0-9]", ""); // 过滤非法字符 ```3. 使用ORM框架使用ORM（对象关系映射）框架，如Hibernate或MyBatis，可以减少手动编写SQL语句的机会，从而降低注入的潜在风险。ORM框架可以帮助处理SQL语句的生成和参数化查询，提供了一种更安全的数据库交互方式。...
// src/main/java/org/example/HelloResource.javapackageorg.example;importjavax.ws.rs.GET;importjavax.ws.rs.Path;importjavax.ws.rs.Produces;importjavax.ws.rs.core.MediaType;@Path("/hello")publicclassHelloResource{@GET@Produces(MediaType.TEXT_PLAIN)publicStringhello(){return"Hello, World!";}} ...
public void print(String s) { System.out.println(s); } String x = //... Optional<String> opt = //... xis a String thatmaybenull,optis nevernull, but may or may not contain some value (presentorempty). There are few ways of creatingOptional: ...
(https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet#RULE_.236_-_Use_an_HTML_Policy_engine_to_validate_or_clean_user-driven_HTML_in_an_outbound_way) 情况八 数据类型:String 上下文:DOM XSS 示例代码:document.write("UNTRUSTED INPUT: " + document.location.hash...
publicclassErrorCodeLoggerimplementsLogger {private Logger delegate;privatestatic final String BUNDLE_FQN = "app.ErrorMessages";privatestatic final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_FQN, new Locale("en", "US"));publicErrorCodeLogger(Logger delegate) {this.delegate = ...
Fastjson是阿里巴巴一个开源的 json 相关的 Java library,这个库能快速实现 Java 对象与 Json 格式数据之间的转换。简单高效,广泛应用于 Web 服务以及 Android 应用客户端上。提供两个主要接口 toJsonString 和 parseObject 来分别实现序列化和反序列化功能。