平时写Android App和Web服务器的通讯是通过JSON的数据格式，然而自己对响应数据的定义的一般是使用Java Bean的继承来实现，下面是web3j的设计，也差不多这样，但是他的泛型用的挺的，以后可以参考。
比如：
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| package org.web3j.protocol.core.methods.response;
import org.web3j.protocol.core.Response;
public class EthCoinbase extends Response<String> {
public String getAddress() {
return getResult();
}
}
|
Response类的 result 字段使用了泛型 T :
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| package org.web3j.protocol.core;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@JsonIgnoreProperties(ignoreUnknown = true)
public class Response<T> {
private long id;
private String jsonrpc;
private T result;
private Error error;
private String rawResponse;
public Response() {
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getJsonrpc() {
return jsonrpc;
}
public void setJsonrpc(String jsonrpc) {
this.jsonrpc = jsonrpc;
}
public T getResult() {
return result;
}
public void setResult(T result) {
this.result = result;
}
public Error getError() {
return error;
}
public void setError(Error error) {
this.error = error;
}
public boolean hasError() {
return error != null;
}
public String getRawResponse() {
return rawResponse;
}
public void setRawResponse(String rawResponse) {
this.rawResponse = rawResponse;
}
public static class Error {
private int code;
private String message;
private String data;
public Error() {
}
public Error(int code, String message) {
this.code = code;
this.message = message;
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof Error)) {
return false;
}
Error error = (Error) o;
if (getCode() != error.getCode()) {
return false;
}
if (getMessage() != null
? !getMessage().equals(error.getMessage()) : error.getMessage() != null) {
return false;
}
return getData() != null ? getData().equals(error.getData()) : error.getData() == null;
}
@Override
public int hashCode() {
int result = getCode();
result = 31 * result + (getMessage() != null ? getMessage().hashCode() : 0);
result = 31 * result + (getData() != null ? getData().hashCode() : 0);
return result;
}
}
}
|