td = document.createElement("td");
        tr.appendChild(td);
        td.appendChild(document.createTextNode("Description"));

        for (BlockDoc blockDoc : blocks) {
            // <tr>
            //   <td><link linkend="$id"><literal>$name</literal></link</td>
            //   <td>$description</td>
            // </tr>
            tr = document.createElement("tr");
            parent.appendChild(tr);

        td = document.createElement("td");
        tr.appendChild(td);
        td.appendChild(document.createTextNode("Description"));

        for (PropertyDoc propDoc : properties) {
            // <tr>
            //   <td><link linkend="$id"><literal>$name</literal></link</td>
            //   <td>$description</td>
            // </tr>
            tr = document.createElement("tr");
            parent.appendChild(tr);

在这种情况下，**FastAPI** 将期望像这样的请求体：

```JSON hl_lines="2"
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    }
}
```

而不是：

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

## 总结

你可以添加多个请求体参数到*路径操作函数*中，即使一个请求只能有一个请求体。

    <artifactId>maven-api</artifactId>
    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-di</artifactId>
  <name>Maven 4 API :: Dependency Injection</name>
  <description>Maven 4 API - Dependency Injection</description>

  <properties>
    <maven.compiler.proc>none</maven.compiler.proc>
  </properties>

    <artifactId>maven-api</artifactId>
    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-xml</artifactId>
  <name>Maven 4 API :: XML</name>
  <description>Maven 4 API - Immutable XML.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>
    </dependency>
  </dependencies>

  <artifactId>test</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>

  <name>Maven Integration Test :: MNG-6300</name>
  <description>
    Check that war packages the jar instead of a directory
  </description>

  <reporting>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-javadoc-plugin</artifactId>
      </plugin>

                    ],
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",
                            "content": {
                                "application/json": {

plugins {
    `kotlin-dsl`
}

description = "Provides a plugin to define the version and name for subproject publications"

group = "gradlebuild"

dependencies {
    api(platform(projects.buildPlatform))

    implementation(projects.basics)

    implementation("com.google.code.gson:gson")

{
  "name": "Hacking Gopher",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Go Hacking utility",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": "gopher.png",
    "default_popup": "popup.html"
  },
  "omnibox": { "keyword": "golang" },
  "icons": {
    "16": "gopher.png"
  },
  "permissions": [
     "tabs"
  ]

class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Annotated[
        Item,
        Body(
            examples=[
                {
                    "name": "Foo",
                    "description": "A very nice Item",