我正在嘗試將 json 轉換為 java 對象。由于 json 中有相同的字段，因此會拋出這樣的錯誤。com.fasterxml.jackson.databind.JsonMappingException: Conflicting setter definitions for property "amount": com.gateway.model.Order#setAmount(1 params) vs com.gateway.model.Order#setAmount(1 params)這是 json（與我的問題相關的部分） "order":{ "amount":1.000, "chargeback":{ "amount":0, "currency":"BHD" }, }這是java類的相關部分。public class Order{ private double amount; Chargeback ChargebackObject; // Getter Methods public double getAmount() { return amount; // Setter Methods public void setAmount(double amount) { this.amount = amount; }}class Chargeback{ private double amount; private String currency; // Getter Methods @JsonIgnore public double getAmount() { return amount; } @JsonInclude(Include.NON_NULL) public String getCurrency() { return currency; } // Setter Methods public void setAmount(double cb_amount) { this.amount = cb_amount; } public void setCurrency(String currency) { this.currency = currency; } }請注意，Chargeback 類位于 Order.java 文件中。我已經嘗試@JsonIgnore注釋并刪除類amount中的，chargeback但仍然存在錯誤。有人可以為此提出解決方案嗎？
1 回答
瀟瀟雨雨
TA貢獻1833條經驗 獲得超4個贊
我修改了你的代碼，試試下面的代碼?；旧希易隽艘韵聨准?。
Order 內部沒有 Chargeback 對象的 getter 和 setter，所以添加了。
注釋掉 @JsonIgnore 注釋。
課程如下
class Chargeback {
private double amount;
private String currency;
// Getter Methods
// @JsonIgnore
public double getAmount() {
return amount;
}
// @JsonInclude(Include.NON_NULL)
public String getCurrency() {
return currency;
}
// Setter Methods
public void setAmount(double cb_amount) {
this.amount = cb_amount;
}
public void setCurrency(String currency) {
this.currency = currency;
}
}
public class Order {
private double amount;
Chargeback ChargebackObject;
public double getAmount() {
return amount;
}
public void setAmount(double amount) {
this.amount = amount;
}
public Chargeback getChargebackObject() {
return ChargebackObject;
}
public void setChargebackObject(Chargeback chargebackObject) {
ChargebackObject = chargebackObject;
}
}
下面給出了用于測試生成 Json 的代碼。
public class Test1 {
public static void main(String[] args) throws Exception {
Chargeback chargeback = new Chargeback();
chargeback.setAmount(1234.00);
chargeback.setCurrency("BHD");
Order order = new Order();
order.setAmount(2345.00);
order.setChargebackObject(chargeback);
ObjectMapper mapper = new ObjectMapper();
String toJson = null;
try {
toJson = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(order);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Complete Json = " + toJson);
// From Json String to Java Object
ObjectMapper mapper1 = new ObjectMapper();
Order order1 = mapper.readValue(toJson, Order.class);
System.out.println("Order Object -> " + order1);
}
}
下面給出生成json。
{
"amount" : 2345.0,
"chargebackObject" : {
"amount" : 1234.0,
"currency" : "BHD"
}
}
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