您将需要使用 Google 的 gson 库来解析您的 json 字符串，并创建附加类来保存相同的数据。将您的 json 字符串保存在文件中以读取内容并将它们转换为适当的对象。
您提到的 JSON 字符串有错误，因为您在许多地方都使用了 (")。在所有位置将它们替换为 (")。此更改非常重要，因为如果您不这样做，您可能会得到异常或不需要的输出。
按如下方式存储您的 Json 字符串：
List1.txt
{
"One": [
"G13DA"
],
"Two": [
"G13AA",
"G13AD"
]
}
List2.txt
[
{
"subgroupCode": "G13AA",
"productGroup": [
{
"productCode": "G1A",
"productDescription": "Two 1"
},
{
"productCode": "G9B",
"productDescription": "Two 2"
}
]
},
{
"subgroupCode": "G13AD",
"productGroup": [
{
"productCode": "G4A",
"productDescription": "Two 3"
},
{
"productCode": "G9C",
"productDescription": "Two 4"
}
]
},
{
"subgroupCode": "G13DA",
"productGroup": [
{
"productCode": "G5M",
"productDescription": "One 1"
},
{
"productCode": "G9M",
"productDescription": "One 2"
}
]
}
]
您需要在运行程序时更改这两个文件的路径
添加以下类
JuniorArea.class
public class JuniorArea {
private String juniorAreaDescription;
private List<MerchandisingGroup> mechandisingGroup;
public String getJuniorAreaDescription() {
return juniorAreaDescription;
}
public void setJuniorAreaDescription(String juniorAreaDescription) {
this.juniorAreaDescription = juniorAreaDescription;
}
public List<MerchandisingGroup> getMechandisingGroup() {
return mechandisingGroup;
}
public void setMechandisingGroup(List<MerchandisingGroup> mechandisingGroup) {
this.mechandisingGroup = mechandisingGroup;
}
@Override
public String toString() {
return "JuniorArea [juniorAreaDescription=" + juniorAreaDescription + ", mechandisingGroup=" + mechandisingGroup
+ "]";
}
}
JuniorAreaCollection.class
public class JuniorAreaCollection {
private List<JuniorArea> juniorArea;
public List<JuniorArea> getJuniorArea() {
return juniorArea;
}
public void setJuniorArea(List<JuniorArea> juniorArea) {
this.juniorArea = juniorArea;
}
@Override
public String toString() {
return "JuniorAreaCollection [juniorArea=" + juniorArea + "]";
}
}
MerchandisingGroup.class
public class MerchandisingGroup {
private String productCode;
private String productDescription;
public String getProductCode() {
return productCode;
}
public void setProductCode(String productCode) {
this.productCode = productCode;
}
public String getProductDescription() {
return productDescription;
}
public void setProductDescription(String productDescription) {
this.productDescription = productDescription;
}
@Override
public String toString() {
return "MechandisingGroup [productCode=" + productCode + ", productDescription=" + productDescription + "]";
}
}
产品.class
public class Product {
private String subgroupCode;
private List<ProductGroup> productGroup;
public String getSubgroupCode() {
return subgroupCode;
}
public void setSubgroupCode(String subgroupCode) {
this.subgroupCode = subgroupCode;
}
public List<ProductGroup> getProductGroup() {
return productGroup;
}
public void setProductGroup(List<ProductGroup> productGroup) {
this.productGroup = productGroup;
}
@Override
public String toString() {
return "Product [subgroupCode=" + subgroupCode + ", productGroup=" + productGroup + "]";
}
}
ProductGroup.class
public class ProductGroup {
private String productCode;
private String productDescription;
public String getProductCode() {
return productCode;
}
public void setProductCode(String productCode) {
this.productCode = productCode;
}
public String getProductDescription() {
return productDescription;
}
public void setProductDescription(String productDescription) {
this.productDescription = productDescription;
}
@Override
public String toString() {
return "ProductGroup [productCode=" + productCode + ", productDescription=" + productDescription + "]";
}
}
最后运行下面的 Main Class 代码，检查输出
public class MainRunner {
// Use Path according to your file system
private static String List1Path = "/List1.txt";
// Use Path according to your file system
private static String List2Path = "/List2.txt";
public static void main(String...arg) throws UnsupportedEncodingException, IOException {
Gson gson = new GsonBuilder().setPrettyPrinting().create();
String List1Content = new String(Files.readAllBytes(Paths.get(List1Path)), "UTF-8");
Map<String, List<String>> map = new HashMap<>();
map = gson.fromJson(List1Content, new TypeToken<Map<String, List<String>>>() {}.getType());
System.out.println(map);
String List2Content = new String(Files.readAllBytes(Paths.get(List2Path)), "UTF-8");
List<Product> products = gson.fromJson(List2Content, new TypeToken<List<Product>>() {}.getType());
System.out.println(products);
List<JuniorArea> juniorAreas = new ArrayList<>();
for (String s : map.keySet()) {
JuniorArea juniorArea = new JuniorArea();
juniorArea.setJuniorAreaDescription(s);
List<MerchandisingGroup> merchandisingGroups = new ArrayList<>();
List<String> subgroupCodes = map.get(s);
for (String subgroupCode : subgroupCodes) {
for (Product product : products) {
if (product.getSubgroupCode().equals(subgroupCode)) {
List<ProductGroup> productGroups = product.getProductGroup();
for (ProductGroup productGroup : productGroups) {
MerchandisingGroup merchandisingGroup = new MerchandisingGroup();
merchandisingGroup.setProductCode(productGroup.getProductCode());
merchandisingGroup.setProductDescription(productGroup.getProductDescription());
merchandisingGroups.add(merchandisingGroup);
}
}
}
}
juniorArea.setMechandisingGroup(merchandisingGroups);
juniorAreas.add(juniorArea);
}
JuniorAreaCollection collection = new JuniorAreaCollection();
collection.setJuniorArea(juniorAreas);
System.out.println(gson.toJson(collection));
}
}
输出应该打印在您的控制台上
{
"juniorArea": [
{
"juniorAreaDescription": "One",
"mechandisingGroup": [
{
"productCode": "G5M",
"productDescription": "One 1"
},
{
"productCode": "G9M",
"productDescription": "One 2"
}
]
},
{
"juniorAreaDescription": "Two",
"mechandisingGroup": [
{
"productCode": "G1A",
"productDescription": "Two 1"
},
{
"productCode": "G9B",
"productDescription": "Two 2"
},
{
"productCode": "G4A",
"productDescription": "Two 3"
},
{
"productCode": "G9C",
"productDescription": "Two 4"
}
]
}
]
}