英文:
Unable to read and print yaml file data
问题
语言：Go
我正在练习如何读取和打印yaml文件的数据，但无法做到，并且代码无法通过。有人可以帮忙吗？
Yaml文件：
ENV:
foo: test
boo: test-123-tet222
代码：
package test
import (
"testing"
"fmt"
"io/ioutil"
"log"
"gopkg.in/yaml.v3"
)
type config struct {
foo string
boo string
}
func TestTerraformAzureCosmosDBExample(t *testing.T) {
yFile, err := ioutil.ReadFile("config.yaml")
if err != nil {
log.Fatal(err)
}
data := make(map[string]config)
err2 := yaml.Unmarshal(yFile, &data)
if err2 != nil {
log.Fatal(err2)
}
for k, v := range data {
fmt.Printf(k, v)
}
}
期望输出：
foo: test
boo: test-123-tet222
实际输出：
C:\foo\boo>go test -v
=== RUN TestTerraformAzureCosmosDBExample
ENV%!(EXTRA test.config={ })--- PASS: TestTerraformAzureCosmosDBExample (0.00s)
PASS
ok foobo_test 0.179s
英文:
Language: Go
I am practicing how to read and print the yaml file data but unable to do so and the code is getting through. Can someone help here?
Yaml file:
ENV:
foo: test
boo: test-123-tet222
code:
package test
import (
"testing"
"fmt"
"io/ioutil"
"log"
"gopkg.in/yaml.v3"
)
type config struct {
foo string
boo string
}
func TestTerraformAzureCosmosDBExample(t *testing.T) {
yFile, err := ioutil.ReadFile("config.yaml")
if err != nil {
log.Fatal(err)
}
data := make(map[string]config)
err2 := yaml.Unmarshal(yFile, &data)
if err2 != nil {
log.Fatal(err2)
}
for k, v := range data {
fmt.Printf(k, v)
}
}
Expected Output:
foo: test
boo: test-123-tet222
Actual Output:
C:\foo\boo>go test -v
=== RUN TestTerraformAzureCosmosDBExample
ENV%!(EXTRA test.config={ })--- PASS: TestTerraformAzureCosmosDBExample (0.00s)
PASS
ok foobo_test 0.179s
答案1
得分: 2
你的config结构体缺少yaml标签。请按照以下方式进行编辑。另外，Printf方法需要一个格式化字符串，请按照以下方式进行编辑。
import (
"fmt"
"gopkg.in/yaml.v3"
"io/ioutil"
"log"
"testing"
)
type config struct {
Foo string `yaml:"foo"`
Boo string `yaml:"boo"`
}
func TestTerraformAzureCosmosDBExample(t *testing.T) {
yFile, err := ioutil.ReadFile("config.yaml")
if err != nil {
log.Fatal(err)
}
data := make(map[string]config)
err = yaml.Unmarshal(yFile, &data)
if err != nil {
log.Fatal(err)
}
for k, v := range data {
fmt.Printf("key: %v, value: %v", k,v)
}
}
输出结果为：
key: ENV, value: {test test-123-tet222}--- PASS: TestTerraformAzureCosmosDBExample (0.00s)
英文:
Your config struct is missing yaml tags. Edit it as follows. Also the Printf method expects a formatter string, edit that too as follows.
import (
"fmt"
"gopkg.in/yaml.v3"
"io/ioutil"
"log"
"testing"
)
type config struct {
Foo string `yaml:"foo"`
Boo string `yaml:"boo"`
}
func TestTerraformAzureCosmosDBExample(t *testing.T) {
yFile, err := ioutil.ReadFile("config.yaml")
if err != nil {
log.Fatal(err)
}
data := make(map[string]config)
err = yaml.Unmarshal(yFile, &data)
if err != nil {
log.Fatal(err)
}
for k, v := range data {
fmt.Printf(`key: %v, value: %v`, k,v)
}
}
gives the output:
key: ENV, value: {test test-123-tet222}--- PASS: TestTerraformAzureCosmosDBExample (0.00s)
答案2
得分: 1
你正在迭代一个名为data的map[string]config。
该对象有一个键ENV，该键的值是你要查找的config对象。
尝试使用以下代码：
fmt.Printf("Foo: %S\n", data["ENV"].Foo)
fmt.Printf("Boo: %S\n", data["ENV"].Boo)
英文:
You are iterating over data that is a map[string]config.
That object has one key, ENV and the value for that key is the config object you are looking for.
Try with:
fmt.Printf("Foo: %S\n", data["ENV"].Foo)
fmt.Printf("Boo: %S\n", data["ENV"].Boo)
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