我正在 Java 中实现 api 调用，唯一提供的示例是 PHP，我的问题是 json_encode 的 java 等价物是什么，所以我们得到完全相同的输出。
foreach($products_from_order as $item_id => $item)
{
$value[] = array(
'product_sku' =>$item['sku'],
'product_name' =>$item['name'],
'product_desc' =>$item['description'],
'product_price' =>$item['price'],
'product_url' =>$item['url'],
'product_image' => $item['image'],
);
}
$apiData = array("merchant_id" => $merchantId,
"order_id" => $orderId,
"customer_name" => $customerName,
"customer_email" => $customerEmail,
"purchase_date" => $purchaseDate,
"products" => $value,
"key" => $apiKey,
"hmac" => $calculatedHmac
);
$data_string = json_encode($apiData)
我现在有一个示例输出，所以我想我只需要知道在 java 中执行此操作的最简单方法
{
"merchant_id":"526",
"order_id":"15",
"customer_name":"Tom Tester",
"customer_email":"larry+tomtester@acompany.com",
"purchase_date":"2017-01-27 22:05:56",
"key":"24e694753d1c6d957882d4d560902b3f05454a0357b4c73a5bc66469653644cf9374ed5de8a2781d4151732299e821c4adf726f884923a46ae60a43d1b197164",
"hmac":"kH9BBiRPMdHTP\\/dZgcUCPaldhpL9ttUw+lYl7LdB32Q=",
"products":[
{
"product_sku":"47",
"product_name":"HP LP3065",
"product_desc":"\\r\\n\\tStop your co-workers in their tracks with the stunning new 30-inch diagonal HP LP3065 Flat Panel Monitor. This flagship monitor features best-in-class performance and presentation features on a huge wide-aspect screen while letting you work as comfortably as possible - you might even forget you're at the office\\r\\n..",
"product_price":"100.0000",
"product_url":"http:\\/\\/ts.oc-develop.com\\/index.php?route=product\\/product&product_id=47",
"product_image":"http:\\/\\/ts.oc-develop.com\\/image\\/cache\\/catalog\\/demo\\/hp_1-500x500.jpg"
},
{
"product_sku":"41",
"product_name":"iMac",
"product_desc":"\\r\\n\\tJust when you thought iMac had everything, now there\\u00b4s even more. More powerful Intel Core 2 Duo processors. And more memory standard. Combine this with Mac OS X Leopard and iLife \\u00b408, and it\\u00b4s more all-in-one than ever. iMac packs amazing performance into a stunningly slim space.\\r\\n..",
"product_price":"100.0000",
"product_url":"http:\\/\\/ts.oc-develop.com\\/index.php?route=product\\/product&product_id=41",
"product_image":"http:\\/\\/ts.oc-develop.com\\/image\\/cache\\/catalog\\/demo\\/imac_1-500x500.jpg"
},
{
"product_sku":"28",
"product_name":"HTC Touch HD",
"product_desc":"\\r\\n\\tHTC Touch - in High Definition. Watch music videos and streaming content in awe-inspiring high definition clarity for a mobile experience you never thought possible. Seductively sleek, the HTC Touch HD provides the next generation of mobile functionality, all at a simple touch. Fully integrated with Windows Mobile Professional 6.1, ultrafast 3.5G, GPS, 5MP camera, plus lots more - all delivered on a breathtakingly crisp 3.8" WVGA touchscreen - you can take control of your mobile world wi..",
"product_price":"100.0000",
"product_url":"http:\\/\\/ts.oc-develop.com\\/index.php?route=product\\/product&product_id=28",
"product_image":"http:\\/\\/ts.oc-develop.com\\/image\\/cache\\/catalog\\/demo\\/htc_touch_hd_1-500x500.jpg"
}
]
}
更新 所以我选择了 Gson 库
为订单和人员创建 POJO
import java.util.ArrayList;
import java.util.List;
public class Order
{
private String merchantId;
private String customerEmail;
private String customerName;
private String orderId;
private String purchaseDate;
private String key;
private String hmac;
private List<Product> products = new ArrayList();
public String getCustomerEmail()
{
return customerEmail;
}
public void setCustomerEmail(String customerEmail)
{
this.customerEmail = customerEmail;
}
public String getCustomerName()
{
return customerName;
}
public void setCustomerName(String customerName)
{
this.customerName = customerName;
}
public String getOrderId()
{
return orderId;
}
public void setOrderId(String orderId)
{
this.orderId = orderId;
}
public String getPurchaseDate()
{
return purchaseDate;
}
public void setPurchaseDate(String purchaseDate)
{
this.purchaseDate = purchaseDate;
}
public String getMerchantId()
{
return merchantId;
}
public void setMerchantId(String merchantId)
{
this.merchantId = merchantId;
}
public String getKey()
{
return key;
}
public void setKey(String key)
{
this.key = key;
}
public String getHmac()
{
return hmac;
}
public void setHmac(String hmac)
{
this.hmac = hmac;
}
public List<Product> getProducts()
{
return products;
}
public void addProducts(Product product)
{
products.add(product);
}
}
public class Product
{
private String productSku;
private String productName;
private String productDescription;
private String productPrice;
private String productUrl;
private String productImage;
public String getProductSku()
{
return productSku;
}
public void setProductSku(String productSku)
{
this.productSku = productSku;
}
public String getProductName()
{
return productName;
}
public void setProductName(String productName)
{
this.productName = productName;
}
public String getProductDescription()
{
return productDescription;
}
public void setProductDescription(String productDescription)
{
this.productDescription = productDescription;
}
public String getProductPrice()
{
return productPrice;
}
public void setProductPrice(String productPrice)
{
this.productPrice = productPrice;
}
public String getProductUrl()
{
return productUrl;
}
public void setProductUrl(String productUrl)
{
this.productUrl = productUrl;
}
public String getProductImage()
{
return productImage;
}
public void setProductImage(String productImage)
{
this.productImage = productImage;
}
}
然后按如下方式调用它:
Order order = new Order();
order.setMerchantId(String.valueOf(526));
order.setOrderId(String.valueOf(15));
order.setCustomerName("Tom Tester");
order.setCustomerEmail("larry+tomtester@trustspot.io");
order.setPurchaseDate("2017-01-27 22:05:56");
order.setHmac("kH9AAiRPMdHTP/dZgcUCPaldhpL9ttUw+lYl7LdB32Q=");
Product p1 = new Product();
p1.setProductSku(String.valueOf(47));
p1.setProductName("HP LP3065");
p1.setProductDescription("\r\nStop your co-workers in their tracks with the stunning new 30-inc");
p1.setProductPrice("100.0000");
p1.setProductUrl("http://ts.oc-develop.com/index.php?route=product/product&product_id=47");
p1.setProductImage("http://ts.oc-develop.com/image/cache/catalog/demo/hp_1-500x500.jpg");
order.addProducts(p1);
Product p2 = new Product();
p2.setProductSku(String.valueOf(41));
p2.setProductName("iMac");
p2.setProductDescription("\r\nJust when you thought iMac had everything,");
p2.setProductPrice("100.0000");
p2.setProductUrl("http://ts.oc-develop.com/index.php?route=product/product&product_id=41");
p2.setProductImage("http://ts.oc-develop.com/image/cache/catalog/demo/imac_1-500x500.jpg");
order.addProducts(p2);
Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES).setPrettyPrinting().create();
System.out.println(gson.toJson(order));
给出输出
{
"merchant_id": "526",
"customer_email": "larry+tomtester@trustspot.io",
"customer_name": "Tom Tester",
"order_id": "15",
"purchase_date": "2017-01-27 22:05:56",
"hmac": "kH9AAiRPMdHTP/dZgcUCPaldhpL9ttUw+lYl7LdB32Q\u003d",
"products": [
{
"product_sku": "47",
"product_name": "HP LP3065",
"product_description": "\r\nStop your co-workers in their tracks with the stunning new 30-inc",
"product_price": "100.0000",
"product_url": "http://ts.oc-develop.com/index.php?route\u003dproduct/product\u0026amp;product_id\u003d47",
"product_image": "http://ts.oc-develop.com/image/cache/catalog/demo/hp_1-500x500.jpg"
},
{
"product_sku": "41",
"product_name": "iMac",
"product_description": "\r\nJust when you thought iMac had everything,",
"product_price": "100.0000",
"product_url": "http://ts.oc-develop.com/index.php?route\u003dproduct/product\u0026amp;product_id\u003d41",
"product_image": "http://ts.oc-develop.com/image/cache/catalog/demo/imac_1-500x500.jpg"
}
]
}
现在只是想知道为什么他们要转义“/”，例如在 hmac 中，在 api 文档中没有提到是否这样做，但在示例 json 中显然有，这是由 json_encode 还是其他东西完成的，对我来说似乎没有必要。
逃逸只是由于他们复制并粘贴日志输出而引起的。由于这个问题非常具体，我将删除它，这对其他人来说似乎没什么用
最佳答案
Java 中没有等效的库，但您可以尝试使用一些第三方库，例如 GSON 或 org.json。*
关于java - 相当于 php json_encode 的 Java 是什么，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41899816/