但当表单包含文件时，会编码为 `multipart/form-data`。你将在下一章阅读如何处理文件。

如果你想了解更多关于这些编码和表单字段的信息，请参阅 [<abbr title="Mozilla Developer Network - Mozilla 开发者网络">MDN</abbr> Web 文档的 `POST`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST)。

///

/// warning

你可以在一个路径操作中声明多个 `Form` 参数，但不能同时再声明要接收为 JSON 的 `Body` 字段，因为此时请求体会使用 `application/x-www-form-urlencoded` 而不是 `application/json` 进行编码。

这不是 **FastAPI** 的限制，而是 HTTP 协议的一部分。

///

   * or [responseBodyStart]. In earlier releases this method was documented to only be invoked after
   * one of those methods.
   */
  open fun responseFailed(
    call: Call,
    ioe: IOException,
  ) {
  }

  /**
   * Invoked immediately after a call has completely ended.  This includes delayed consumption
   * of response body by the caller.
   *
   * This method is always invoked after [callStart].
   */

import com.google.common.escape.CharEscaper;
import com.google.common.escape.Escaper;
import com.google.common.escape.UnicodeEscaper;
import java.io.IOException;
import junit.framework.Assert;

/**
 * Extra assert methods for testing Escaper implementations.
 *
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
public final class EscaperAsserts {
  private EscaperAsserts() {}

  /**

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Supplier;
import java.util.concurrent.Callable;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to the {@link Callable} interface.
 *
 * @author Isaac Shum
 * @since 1.0
 */
@GwtCompatible
public final class Callables {
  private Callables() {}

import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing the various {@link HashCode#equals} methods.
 *
 * <p>Parameters for the benchmark are:
 *
 * <ul>
 *   <li>size: the length of the byte array to hash
 *   <li>whereToDiffer: where in the array the bytes should differ

import com.google.common.escape.CharEscaper;
import com.google.common.escape.Escaper;
import com.google.common.escape.UnicodeEscaper;
import java.io.IOException;
import junit.framework.Assert;

/**
 * Extra assert methods for testing Escaper implementations.
 *
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
public final class EscaperAsserts {
  private EscaperAsserts() {}

  /**

    // -----------/
    // - Methods -/
    // -----------/

    /**
     * Method setFileComment.
     *
     * @param fileComment a fileComment object.
     */
    public void setFileComment(String fileComment) {
        this.fileComment = fileComment;
    } // -- void setFileComment( String )

    /**
     * Method write.
     *
     * @param writer a writer object.

            }
            String authorization = null;
            final List<String> methods = getHeaderFields0().get(authHeader);
            if (methods == null) {
                return null;
            }
            for (String currentAuthMethod : methods) {
                if (currentAuthMethod.startsWith("NTLM")) {
                    if (currentAuthMethod.length() == 4) {

        assertEquals(0, results.length);
    }

    @Test
    public void test_toLowerCase_nullInput() {
        // Test private method indirectly through public methods
        List<RelatedQuery> testData = new ArrayList<>();
        testData.add(createRelatedQuery(null, new String[] { "query" }, ""));
        mockBhv.setTestData(testData);

        features down to compact but powerful abstractions, and controlling feature bloat carefully.

  - type: textarea
    attributes:
      label: API(s)
      description: Which existing classes or methods do you want to improve?
      placeholder: e.g., `com.google.common.collect.ImmutableList::of`
      render: java
    validations:
      required: true

  - type: textarea
    attributes: