Class<Unsafe> k = Unsafe.class;
              for (Field f : k.getDeclaredFields()) {
                f.setAccessible(true);
                Object x = f.get(null);
                if (k.isInstance(x)) return k.cast(x);
              }
              throw new NoSuchFieldError("the Unsafe");
            }
          });
    } catch (PrivilegedActionException e) {

name: Java CI with Maven

on:
  push:
    branches:
    - master
    - "*.x"
  pull_request:
    branches:
    - master
    - "*.x"

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 21
      uses: actions/setup-java@v2
      with:

   *     .toString();
   *
   * // Returns "ClassName{x=1}"
   * MoreObjects.toStringHelper(this)
   *     .add("x", 1)
   *     .toString();
   *
   * // Returns "MyObject{x=1}"
   * MoreObjects.toStringHelper("MyObject")
   *     .add("x", 1)
   *     .toString();
   *
   * // Returns "ClassName{x=1, y=foo}"
   * MoreObjects.toStringHelper(this)
   *     .add("x", 1)
   *     .add("y", "foo")
   *     .toString();

    summary="Deadpool's favorite app. Nuff said.",
    version="0.0.1",
    terms_of_service="http://example.com/terms/",
    contact={
        "name": "Deadpoolio the Amazing",
        "url": "http://x-force.example.com/contact/",
        "email": "dp@x-force.example.com",
    },
    license_info={
        "name": "Apache 2.0",
        "identifier": "Apache-2.0",
    },
)


@app.get("/items/")
async def read_items():

 *
 * {@snippet :
 * // Helper function keeps victim stack-unreachable.
 * private WeakReference<Foo> fooWeakRef() {
 *   Foo x = ....;
 *   WeakReference<Foo> weakRef = new WeakReference<>(x);
 *   // ... use x ...
 *   x = null; // Hint to the JIT that x is stack-unreachable
 *   return weakRef;
 * }
 * public void testFooLeak() {
 *   GcFinalization.awaitClear(fooWeakRef());
 * }
 * }
 *

	// We only get here if defining a macro inside a macro.
	// This imperfect implementation means we cannot tell the difference between
	//	#define A #define B(x) x
	// and
	//	#define A #define B (x) x
	// The first definition of B has an argument, the second doesn't. Because we let
	// text/scanner strip the blanks for us, this is extremely rare, hard to fix, and not worth it.
	return s.pos
}

        @ParameterizedTest
        @DisplayName("Should return correct mime type for multiple extensions")
        @CsvSource({ "txt, text/plain", "css, text/css", "js, application/x-javascript", "zip, application/zip", "tar, application/x-tar",
                "gz, application/x-gzip", "tiff, image/tiff", "tif, image/tiff" })
        void testVariousExtensions(String extension, String expectedMimeType) throws IOException {

github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU=
github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
gorm.io/driver/sqlite v1.6.0 h1:WHRRrIiulaPiPFmDcod6prc4l2VGVWHz80KspNsxSfQ=

有时，可能需要接收重复的请求头。即同一个请求头有多个值。

类型声明中可以使用 `list` 定义多个请求头。

使用 Python `list` 可以接收重复请求头所有的值。

例如，声明 `X-Token` 多次出现的请求头，可以写成这样：

{* ../../docs_src/header_params/tutorial003_an_py310.py hl[9] *}

与*路径操作*通信时，以下面的方式发送两个 HTTP 请求头：

```
X-Token: foo
X-Token: bar
```

响应结果是：

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## 小结 { #recap }

async def verify_token(x_token: str = Header()):
    if x_token != "fake-super-secret-token":
        raise HTTPException(status_code=400, detail="X-Token header invalid")


async def verify_key(x_key: str = Header()):
    if x_key != "fake-super-secret-key":
        raise HTTPException(status_code=400, detail="X-Key header invalid")
    return x_key


@app.get("/items/", dependencies=[Depends(verify_token), Depends(verify_key)])