**Spoiler alert**: the tutorial - user guide includes:

* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
* How to set **validation constraints** as `maximum_length` or `regex`.
* A very powerful and easy to use **<dfn title="also known as components, resources, providers, services, injectables">Dependency Injection</dfn>** system.

yleSheet?E.styleSheet.cssText=F:E.appendChild(j.createTextNode(F)),n.push(E)}},v=function(a,b,d){var e=a.replace(c.regex.keyframes,"").match(c.regex.media),f=e&&e.length||0;b=b.substring(0,b.lastIndexOf("/"));var g=function(a){return a.replace(c.regex.urls,"$1"+b+"$2$3")},h=!f&&d;b.length&&(b+="/"),h&&(f=1);for(var i=0;f>i;i++){var j,k,n,o;h?(j=d,m.push(g(a))):(j=e[i].match(c.regex.findStyles)&&RegExp.$1,m.push(RegExp.$2&&g(RegExp.$2))),n=j.split(","),o=n.length;for(var p=0;o>p;p++)k=n[p],l.push...

**Spoiler alert**: öğretici - kullanıcı rehberi şunları içerir:

* **parameter**'ların farklı yerlerden: **header**'lar, **cookie**'ler, **form alanları** ve **file**'lar olarak tanımlanması.
* `maximum_length` ya da `regex` gibi **doğrulama kısıtlamalarının** nasıl ayarlanacağı.
* Çok güçlü ve kullanımı kolay bir **<dfn title="şöyle de bilinir: bileşenler, kaynaklar, sağlayıcılar, servisler, enjekte edilebilirler">Bağımlılık Enjeksiyonu</dfn>** sistemi.

    return try {
      URI(uri)
    } catch (e: URISyntaxException) {
      // Unlikely edge case: the URI has a forbidden character in the fragment. Strip it & retry.
      try {
        val stripped = uri.replace(Regex("[\\u0000-\\u001F\\u007F-\\u009F\\p{javaWhitespace}]"), "")
        URI.create(stripped)
      } catch (e1: Exception) {
        throw RuntimeException(e) // Unexpected!
      }
    }
  }

  /**

		<property name="propertyMap">defaultPropertyMap</property>
		<property name="childUrlRuleMap">htmlUrlRuleMap</property>
		<!--
		<property name="invalidUrlPattern">@java.util.regex.Pattern@compile("^\\s*javascript:|^\\s*mailto:|^\\s*irc:|^\\s*skype:|^\\s*callto:",@java.util.regex.Pattern@CASE_INSENSITIVE)</property>
		 -->
		<property name="convertUrlMap">
			{"feed:" : "http:"}
		</property>
		<!-- segment -->
		<postConstruct name="addFieldRule">

        assertEquals(25, pathMapPager.getPageSize());
        assertEquals(1, pathMapPager.getCurrentPageNumber());
        assertNull(pathMapPager.id);
        assertNull(pathMapPager.regex);
        assertNull(pathMapPager.replacement);
        assertNull(pathMapPager.versionNo);

        pathMapPager.setAllRecordCount(999);
        assertEquals(999, pathMapPager.getAllRecordCount());

**劇透警告**：教學 - 使用者指南包含：

* 來自不同來源的**參數**宣告：例如 **headers**、**cookies**、**form fields** 和 **files**。
* 如何設定**驗證限制**，如 `maximum_length` 或 `regex`。
* 一個非常強大且易用的 **<dfn title="也稱為：components、resources、providers、services、injectables">依賴注入</dfn>** 系統。
* 安全與驗證，包含支援 **OAuth2** 搭配 **JWT tokens** 與 **HTTP Basic** 驗證。
* 宣告**深度巢狀 JSON 模型**的進階（但同樣簡單）技巧（感謝 Pydantic）。

**Spoiler alert**: the tutorial - user guide includes:

* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
* How to set **validation constraints** as `maximum_length` or `regex`.
* A very powerful and easy to use **<dfn title="also known as components, resources, providers, services, injectables">Dependency Injection</dfn>** system.

import com.puppycrawl.tools.checkstyle.api.FileText;

import java.io.File;
import java.util.Arrays;
import java.util.Iterator;
import java.util.function.BiConsumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Checks the snippets included in the docs aren't too wide to fit on
 * the page.
 */
public class SnippetLengthCheck extends AbstractFileSetCheck {

你还可以添加 `min_length` 参数：

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## 添加正则表达式 { #add-regular-expressions }

你可以定义一个参数必须匹配的 <dfn title="正则表达式（regex 或 regexp）是用于定义字符串搜索模式的字符序列。">正则表达式</dfn> `pattern`：

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

这个特定的正则表达式通过以下规则检查接收到的参数值：

- `^`：必须以接下来的字符开头，前面没有其他字符。