remove deprecated of package io/ioutil (#3395)

binding/binding_test.go

@@ -9,7 +9,6 @@ import (
 	"encoding/json"
 	"errors"
 	"io"
-	"io/ioutil"
 	"mime/multipart"
 	"net/http"
 	"os"
@@ -656,12 +655,12 @@ func TestBindingFormFilesMultipart(t *testing.T) {
 	// file from os
 	f, _ := os.Open("form.go")
 	defer f.Close()
-	fileActual, _ := ioutil.ReadAll(f)
+	fileActual, _ := io.ReadAll(f)
 
 	// file from multipart
 	mf, _ := obj.File.Open()
 	defer mf.Close()
-	fileExpect, _ := ioutil.ReadAll(mf)
+	fileExpect, _ := io.ReadAll(mf)
 
 	assert.Equal(t, FormMultipart.Name(), "multipart/form-data")
 	assert.Equal(t, obj.Foo, "bar")
@@ -1347,13 +1346,13 @@ func testProtoBodyBindingFail(t *testing.T, b Binding, name, path, badPath, body
 	obj := protoexample.Test{}
 	req := requestWithBody("POST", path, body)
 
-	req.Body = ioutil.NopCloser(&hook{})
+	req.Body = io.NopCloser(&hook{})
 	req.Header.Add("Content-Type", MIMEPROTOBUF)
 	err := b.Bind(req, &obj)
 	assert.Error(t, err)
 
 	invalidobj := FooStruct{}
-	req.Body = ioutil.NopCloser(strings.NewReader(`{"msg":"hello"}`))
+	req.Body = io.NopCloser(strings.NewReader(`{"msg":"hello"}`))
 	req.Header.Add("Content-Type", MIMEPROTOBUF)
 	err = b.Bind(req, &invalidobj)
 	assert.Error(t, err)

binding/multipart_form_mapping_test.go

@@ -6,7 +6,7 @@ package binding
 
 import (
 	"bytes"
-	"io/ioutil"
+	"io"
 	"mime/multipart"
 	"net/http"
 	"testing"
@@ -129,7 +129,7 @@ func assertMultipartFileHeader(t *testing.T, fh *multipart.FileHeader, file test
 	fl, err := fh.Open()
 	assert.NoError(t, err)
 
-	body, err := ioutil.ReadAll(fl)
+	body, err := io.ReadAll(fl)
 	assert.NoError(t, err)
 	assert.Equal(t, string(file.Content), string(body))
 

binding/protobuf.go

@@ -6,7 +6,7 @@ package binding
 
 import (
 	"errors"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"google.golang.org/protobuf/proto"
@@ -19,7 +19,7 @@ func (protobufBinding) Name() string {
 }
 
 func (b protobufBinding) Bind(req *http.Request, obj any) error {
-	buf, err := ioutil.ReadAll(req.Body)
+	buf, err := io.ReadAll(req.Body)
 	if err != nil {
 		return err
 	}

context.go

@@ -7,7 +7,6 @@ package gin
 import (
 	"errors"
 	"io"
-	"io/ioutil"
 	"log"
 	"math"
 	"mime/multipart"
@@ -753,7 +752,7 @@ func (c *Context) ShouldBindBodyWith(obj any, bb binding.BindingBody) (err error
 		}
 	}
 	if body == nil {
-		body, err = ioutil.ReadAll(c.Request.Body)
+		body, err = io.ReadAll(c.Request.Body)
 		if err != nil {
 			return err
 		}
@@ -872,7 +871,7 @@ func (c *Context) GetHeader(key string) string {
 
 // GetRawData returns stream data.
 func (c *Context) GetRawData() ([]byte, error) {
-	return ioutil.ReadAll(c.Request.Body)
+	return io.ReadAll(c.Request.Body)
 }
 
 // SetSameSite with cookie

gin_integration_test.go

@@ -9,7 +9,7 @@ import (
 	"crypto/tls"
 	"fmt"
 	"html/template"
-	"io/ioutil"
+	"io"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -43,7 +43,7 @@ func testRequest(t *testing.T, params ...string) {
 	assert.NoError(t, err)
 	defer resp.Body.Close()
 
-	body, ioerr := ioutil.ReadAll(resp.Body)
+	body, ioerr := io.ReadAll(resp.Body)
 	assert.NoError(t, ioerr)
 
 	var responseStatus = "200 OK"

gin_test.go

@@ -8,7 +8,7 @@ import (
 	"crypto/tls"
 	"fmt"
 	"html/template"
-	"io/ioutil"
+	"io"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -76,7 +76,7 @@ func TestLoadHTMLGlobDebugMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -114,7 +114,7 @@ func TestH2c(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -134,7 +134,7 @@ func TestLoadHTMLGlobTestMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -154,7 +154,7 @@ func TestLoadHTMLGlobReleaseMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -181,7 +181,7 @@ func TestLoadHTMLGlobUsingTLS(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -201,7 +201,7 @@ func TestLoadHTMLGlobFromFuncMap(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "Date: 2017/07/01", string(resp))
 }
 
@@ -232,7 +232,7 @@ func TestLoadHTMLFilesTestMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -252,7 +252,7 @@ func TestLoadHTMLFilesDebugMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -272,7 +272,7 @@ func TestLoadHTMLFilesReleaseMode(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -299,7 +299,7 @@ func TestLoadHTMLFilesUsingTLS(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "<h1>Hello world</h1>", string(resp))
 }
 
@@ -319,7 +319,7 @@ func TestLoadHTMLFilesFuncMap(t *testing.T) {
 		t.Error(err)
 	}
 
-	resp, _ := ioutil.ReadAll(res.Body)
+	resp, _ := io.ReadAll(res.Body)
 	assert.Equal(t, "Date: 2017/07/01", string(resp))
 }
 

recovery.go

@@ -9,7 +9,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net"
 	"net/http"
@@ -121,7 +120,7 @@ func stack(skip int) []byte {
 		// Print this much at least.  If we can't find the source, it won't show.
 		fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc)
 		if file != lastFile {
-			data, err := ioutil.ReadFile(file)
+			data, err := os.ReadFile(file)
 			if err != nil {
 				continue
 			}

routes_test.go

@@ -6,7 +6,6 @@ package gin
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -294,7 +293,7 @@ func TestRouteParamsByNameWithExtraSlash(t *testing.T) {
 func TestRouteStaticFile(t *testing.T) {
 	// SETUP file
 	testRoot, _ := os.Getwd()
-	f, err := ioutil.TempFile(testRoot, "")
+	f, err := os.CreateTemp(testRoot, "")
 	if err != nil {
 		t.Error(err)
 	}
@@ -329,7 +328,7 @@ func TestRouteStaticFile(t *testing.T) {
 func TestRouteStaticFileFS(t *testing.T) {
 	// SETUP file
 	testRoot, _ := os.Getwd()
-	f, err := ioutil.TempFile(testRoot, "")
+	f, err := os.CreateTemp(testRoot, "")
 	if err != nil {
 		t.Error(err)
 	}