Question

我有这段代码来读取json对象。我需要轻松地遍历“输出” /数据/概念键中的所有元素。

有更好的方法吗？

此外，我该如何访问值的属性。即value.app_id，value.id..etc

代码

package main

import (
    "encoding/json"
    "fmt"
)

var jsonBytes = []byte(`
{"outputs": [{
          "data": {"concepts": 
                                 [{"app_id": "main",
                                     "id": "ai_GTvMbVGh",
                                     "name": "ancient",
                                     "value": 0.99875855}]
              }}
              ],
 "status": {"code": 10000, "description": "Ok"}}`)


func main() {
    var output map[string]interface{}
    err := json.Unmarshal([]byte(jsonBytes), &output)
    if err != nil {
        print(err)
    }
    for _, value := range output["outputs"].([]interface{}) {
        //fmt.Println(value.(map[string]interface{})["data"].(map[string]interface{})["concepts"]).([]interface{})
        //fmt.Println(value.(map[string]interface{})["data"].(map[string]interface{})["concepts"])
        for _, value := range value.(map[string]interface{})["data"].(map[string]interface{})["concepts"].([]interface{}){
            fmt.Println(value)
        }
    }
    //fmt.Printf("%+v\n", output)
}

Answer 1

最好的方法是将JSON解组为结构并遍历值，

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    exclude-result-prefixes="xs"
    version="2.0">
 <xsl:template match="/" >
<html>
    <head><title>Vendor Information</title>
    </head>
    <body>
    <table border="1">
    <thead>
         <tr>
            <th>Order Information</th>
          </tr>
     </thead>
     <thead>
      <tr>
      <xsl:for-each select="orderform1/customers/customer">
      <tr>
      <td><h4>Customer Information</h4></td>
      <td><xsl:value-of select="name"/></td>
      <td><xsl:value-of select="mail_a"/></td>
      <td><xsl:value-of select="c_num"/></td>
      </tr>   
      </xsl:for-each>
      </tr>
      </thead>
      <thead>
      <tr>
      <xsl:for-each select="customers/customer/product_information">
      <tr>
      <td><h4>Product Information</h4></td>
      <td><xsl:value-of select="product_description"/></td>
      <td><xsl:value-of select="catgory"/></td>
      <td><xsl:value-of select="upc"/></td>
      <td><xsl:value-of select="p_vend"/></td>
      <td><xsl:value-of select="c_information"/></td>
      <td><xsl:value-of select="cost"/></td>
      <td><xsl:value-of select="retail_cost"/></td>
                        </tr> 
                       </xsl:for-each>
                   </tr>
               </thead>
               <thead>
                   <tr>
                       <xsl:for-each select="orderform1/customers/customer/product_information/vendor">
                           <tr>
                               <td><h4>Vendor Information</h4></td>
                               <td><xsl:value-of select="bus_name"/></td>
                               <td><xsl:value-of select="contact_information"/></td>
                               <td><xsl:value-of select="b_address"/></td>
                               <td><xsl:value-of select="vendor_id"/></td>
                           </tr> 
                       </xsl:for-each>
                   </tr>
               </thead>
        <thead>
            <tr>
                <xsl:for-each select="orderform1/customers/customer/product_information/vendor/orders/order">
                    <tr>
                        <td><h4>Order Information</h4></td>
                        <td><xsl:value-of select="date"/></td>
                        <td><xsl:value-of select="c_num"/></td>
                        <td><xsl:value-of select="pur_deatails"/></td>
                        <td><xsl:value-of select="total_before_tax"/></td>
                        <td><xsl:value-of select="tax"/></td>
                        <td><xsl:value-of select="total_after_tax"/></td>
                        <td><xsl:value-of select="item_count"/></td>
                    </tr> 
                </xsl:for-each>
            </tr>
        </thead>
           </table>
         </body>
     </html> 
 </xsl:template>
</xsl:stylesheet>

在Golang中迭代列表json对象

1 个答案: