</p>
				<%-- Message --%>
				<div>
					<la:info id="msg" message="false">
						<div class="alert alert-info">${msg}</div>
					</la:info>
					<la:errors />
				</div>
				<la:form styleId="login" method="post">
					<div class="input-group mb-3">
						<c:set var="ph_username">
							<la:message key="labels.login.placeholder_username" />
						</c:set>
						<la:text property="username" styleId="username"

				</p>
				<%-- Message --%>
				<div>
					<la:info id="msg" message="false">
						<div class="alert alert-info">${msg}</div>
					</la:info>
					<la:errors />
				</div>
				<la:form styleId="newPassword" method="post">
					<div class="input-group mb-3">
						<c:set var="ph_new_password">
							<la:message key="labels.login.placeholder_new_password" />
						</c:set>
						<la:password property="password" class="form-control"

# 请求体 - 更新数据

## 用 `PUT` 更新数据

更新数据请用 <a href="https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTP `PUT`</a> 操作。

把输入数据转换为以 JSON 格式存储的数据（比如，使用 NoSQL 数据库时），可以使用 `jsonable_encoder`。例如，把 `datetime` 转换为 `str`。

```Python hl_lines="30-35"
{!../../docs_src/body_updates/tutorial001.py!}
```

`PUT` 用于接收替换现有数据的数据。

### 关于更新数据的警告

用 `PUT` 把数据项 `bar` 更新为以下内容时：

```Python
{

    assertEquals(0x388ee898bad75cbfL, hasher.hash().asLong());
  }

  /** Convenience method to compute a fingerprint on a full bytes array. */
  private static long fingerprint(byte[] bytes) {
    return fingerprint(bytes, bytes.length);
  }

  /** Convenience method to compute a fingerprint on a subset of a byte array. */
  private static long fingerprint(byte[] bytes, int length) {

import org.apache.maven.api.annotations.ThreadSafe;

/**
 * Marker interface for all services provided by the {@link Session}.
 * <p>
 * Services can be retrieved from the session using the
 * {@link Session#getService(Class)} method.
 *
 * @since 4.0.0
 * @see Session#getService(Class)
 */
@Experimental
@ThreadSafe

 * limitations under the License.
 */

package com.google.common.collect.testing.features;

import com.google.common.annotations.GwtCompatible;
import java.util.Set;

/**
 * Thrown when requirements on a tester method or class conflict with each other.
 *
 * @author George van den Driessche
 */
@GwtCompatible
public class ConflictingRequirementsException extends Exception {
  private Set<Feature<?>> conflicts;

public interface Interner<E> {
  /**
   * Chooses and returns the representative instance for any of a collection of instances that are
   * equal to each other. If two {@linkplain Object#equals equal} inputs are given to this method,
   * both calls will return the same instance. That is, {@code intern(a).equals(a)} always holds,
   * and {@code intern(a) == intern(b)} if and only if {@code a.equals(b)}. Note that {@code

  private final String value;

  LegacyComparable(String value) {
    this.value = value;
  }

  @Override
  public int compareTo(Object object) {
    // This method is spec'd to throw CCE if object is of the wrong type
    LegacyComparable that = (LegacyComparable) object;
    return this.value.compareTo(that.value);
  }

  @Override
  public boolean equals(@Nullable Object object) {

/**
 * Standard implementation of {@link MutableGraph} that supports both directed and undirected
 * graphs. Instances of this class should be constructed with {@link GraphBuilder}.
 *
 * <p>Time complexities for mutation methods are all O(1) except for {@code removeNode(N node)},
 * which is in O(d_node) where d_node is the degree of {@code node}.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 */
@ElementTypesAreNonnullByDefault

    }

    @Override
    public void xsetPaging(boolean paging) {
        // Do nothing because this is unsupported on ConditionBean.
        // And it is possible that this method is called by PagingInvoker.
    }

    @Override
    public void enablePagingCountLater() {
        // nothing
    }

    @Override
    public void disablePagingCountLater() {
        // nothing