## Zugriff auf den Requestbody in einem Exceptionhandler { #accessing-the-request-body-in-an-exception-handler }

/// tip | Tipp

Um dasselbe Problem zu lösen, ist es wahrscheinlich viel einfacher, den `body` in einem benutzerdefinierten Handler für `RequestValidationError` zu verwenden ([Fehlerbehandlung](../tutorial/handling-errors.md#use-the-requestvalidationerror-body){.internal-link target=_blank}).

     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The name field for searching data configurations.
     */
    public String name;

    /**
     * The handler name field for searching data configurations.
     */
    public String handlerName;

    /**
     * The description field for searching data configurations.
     */
    public String description;

 * limitations under the License.
 */
@file:Suppress("Since15")

package okhttp3.recipes.kt

import java.io.File
import java.io.IOException
import java.lang.ProcessBuilder.Redirect
import java.util.logging.Handler
import java.util.logging.Level
import java.util.logging.LogRecord
import java.util.logging.Logger
import javax.crypto.SecretKey
import javax.net.ssl.SSLSession
import javax.net.ssl.SSLSocket
import okhttp3.Call

        if (StringUtil.isNotBlank(accessResultData.getEncoding())) {
            is.setEncoding(accessResultData.getEncoding());
        }

        // create handler
        final DocHandler handler = new DocHandler();

        // create a sax instance
        final SAXParserFactory spfactory = SAXParserFactory.newInstance();
        try {

// Code generated by "stringer -type=HandlerID -output=handlers_string.go -trimprefix=Handler msg.go handlers.go"; DO NOT EDIT.

package grid

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[handlerInvalid-0]
	_ = x[HandlerLockLock-1]
	_ = x[HandlerLockRLock-2]
	_ = x[HandlerLockUnlock-3]

	errFatal(err)
	b.Cleanup(grid.Cleanup)
	const responses = 10
	// Create n managers.
	for _, remote := range grid.Managers {
		// Register a single handler which echos the payload.
		errFatal(remote.RegisterStreamingHandler(handlerTest, StreamHandler{
			// Send 10x response.
			Handle: func(ctx context.Context, payload []byte, _ <-chan []byte, out chan<- []byte) *RemoteErr {
				for i := range responses {
					toSend := GetByteBuffer()[:0]

                    // Handle operation failure appropriately
                    notifyOperationFailure(op, e);
                }
            }
        }
    }

    private void notifyOperationFailure(CommonServerMessageBlock op, Exception error) {
        // This would need to be implemented based on how the SMB operations
        // handle asynchronous failures in the actual transport implementation

var pkgRE = /^[a-z0-9_\/]+$/;

function urlForInput(t) {
    if (!t) {
        return null;
    }

    if (numericRE.test(t)) {
        if (t < 150000) {
            // We could use the golang.org/cl/ handler here, but
            // avoid some redirect latency and go right there, since
            // one is easy. (no server-side mapping)
            return "https://github.com/golang/go/issues/" + t;
        }

    client ->> dep: Startet den Request
    Note over dep: Führt den Code bis zum yield aus
    opt Löst Exception aus
        dep -->> handler: Löst Exception aus
        handler -->> client: HTTP-Error-Response
    end
    dep ->> operation: Führt Abhängigkeit aus, z. B. DB-Session
    opt Löst aus
        operation -->> dep: Löst Exception aus (z. B. HTTPException)
        opt Handhabt

        // Test error classification using public API
        assertNotNull(errorHandler, "Error handler should handle network errors");

        // Test fallback logic which is public
        assertTrue(errorHandler.shouldFallbackToTcp(hardwareError), "Hardware errors should suggest TCP fallback");