* guaranteed to be supported by all Java platform implementations.
 *
 * <p>Assuming you're free to choose, note that <b>{@link #UTF_8} is widely preferred</b>.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/StringsExplained#charsets">{@code Charsets}</a>.
 *
 * @author Mike Bostock
 * @since 1.0
 */
@GwtCompatible(emulated = true)

dn: uid=fahim,ou=people,ou=swengg,dc=min,dc=io
objectClass: inetOrgPerson
cn: Fahim Ahmed
sn: Ahmed
uid: fahim
mail: ******@****.***
userPassword: {SSHA}lRNH+PHooRaruiEb+CBEA21EZLMkAmcc

# Add a user with special chars. The password = example here.
dn: uid=Пользователь,OU=people,OU=swengg,DC=min,DC=io
objectClass: inetOrgPerson
cn: Special Charsman
sn: Charsman
uid: Пользователь
mail: ******@****.***

            String path = request.getUserProperties().getProperty(Constants.MAVEN_USER_CONF);
            if (path == null) {
                path = request.getSystemProperties().getProperty("user.home") + File.separator + ".m2";
            }
            localRepositoryPath = new File(path, "repository").getAbsolutePath();
        }

        try {

import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import static java.util.stream.Collectors.toSet;

/**
 * Container for storing the request from the user to activate or deactivate certain projects and optionally fail the
 * build if those projects do not exist.
 */
public class ProjectActivation {
    private static class ProjectActivationSettings {
        /**

// The RuntimeClass is used to determine which container runtime is used to run
// all containers in a pod. RuntimeClasses are (currently) manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see

            tempDir.delete();
            tempDir.mkdirs();

            // robots.txt
            StringBuilder buf = new StringBuilder();
            buf.append("User-agent: *").append('\n');
            buf.append("Disallow: /admin/").append('\n');
            buf.append("Disallow: /websvn/").append('\n');
            final File robotTxtFile = new File(tempDir, "robots.txt");

                        final String userCode = userInfoHelper.getUserCode();

                        if (StringUtil.isBlank(userCode)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "No user session.");
                        }
                        if (StringUtil.isBlank(favoriteUrl)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "URL is null.");

	err := d.DecodeElement(&dateStr, &startElement)
	if err != nil {
		return err
	}
	// While AWS documentation mentions that the date specified
	// must be present in ISO 8601 format, in reality they allow
	// users to provide RFC 3339 compliant dates.
	trnDate, err := time.Parse(time.RFC3339, dateStr)
	if err != nil {
		return errTransitionInvalidDate
	}
	// Allow only date timestamp specifying midnight GMT

也可以在*响应*生成但是返回之前添加代码.

例如你可以添加自定义请求头 `X-Process-Time` 包含以秒为单位的接收请求和生成响应的时间:

```Python hl_lines="10  12-13"
{!../../docs_src/middleware/tutorial001.py!}
```

## 其他中间件

你可以稍后在 [Advanced User Guide: Advanced Middleware](../advanced/middleware.md){.internal-link target=_blank}阅读更多关于中间件的教程.

    }
  }

  /**
   * Returns an optional enum constant for the given type, using {@link Enum#valueOf}. If the
   * constant does not exist, {@link Optional#absent} is returned. A common use case is for parsing
   * user input or falling back to a default enum constant. For example, {@code
   * Enums.getIfPresent(Country.class, countryInput).or(Country.DEFAULT);}
   *
   * @since 12.0
   */