java中继承的作用是什么

今天就跟大家聊聊有关java中继承的作用是什么，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

配置的父类

public class ConfigureDefinition implements Serializable {    private final static Logger LOGGER = LoggerFactory.getLogger(ConfigureDefinition.class);    public static String valicateErrorMessage;    public TaskNodeDefinition addConfiguration(Object json,TaskNodeDefinition target){        LOGGER.info("--->ConfigureDefinition addConfiguration() the [task node]", target.toString());        return target;    }    public TaskNodeDefinition processConfiguration(TaskNodeDefinition taskNodeDefinition) throws Exception{        LOGGER.info("--->ConfigureDefinition processConfiguration() the [task node]", taskNodeDefinition.toString());        validate(taskNodeDefinition);        return taskNodeDefinition;    }    public boolean validate(TaskNodeDefinition taskNodeDefinition) {        LOGGER.info("--->ConfigureDefinition validate() the [task node]", taskNodeDefinition.toString());        return true;    }    public String validateReturnMessage(TaskNodeDefinition taskNodeDefinition){        LOGGER.info("--->ConfigureDefinition validateReturnMessage() the [task node]", taskNodeDefinition.toString());        validate(taskNodeDefinition);        return valicateErrorMessage;    }}

不同的子类有各自的业务逻辑，如果没有就使用父类的逻辑

public class HttpRequestConfig extends ConfigureDefinition {    private final static Logger LOGGER = LoggerFactory.getLogger(HttpRequestConfig.class);    @Override    public TaskNodeDefinition addConfiguration(Object json,TaskNodeDefinition target){        LOGGER.info("---> HttpRequestConfig addConfiguration() the [HTTP Request] <{}>", target.getTaskId(),json);        JSONObject jsonObject= JSONObject.fromObject(json);        HttpRequestDefinition httpRequestDefinition=(HttpRequestDefinition)JSONObject.toBean(jsonObject, HttpRequestDefinition.class);        target.setConfigure(httpRequestDefinition);        return target;    }    @Override    public TaskNodeDefinition processConfiguration(TaskNodeDefinition taskNodeDefinition) throws Exception {        return super.processConfiguration(taskNodeDefinition);    }    @Override    public boolean validate(TaskNodeDefinition taskNodeDefinition) {        LOGGER.info("--->HttpRequestConfig validate() the [HTTP Request]", taskNodeDefinition.toString());        if (Objects.isNull(taskNodeDefinition.getConfigure())                || Objects.isNull(taskNodeDefinition.getConfigure())                || Objects.isNull(((HttpRequestDefinition)taskNodeDefinition.getConfigure()).getGeneral())                || StringUtils.isAnyBlank(((HttpRequestDefinition)taskNodeDefinition.getConfigure()).getGeneral().getMethod(),                ((HttpRequestDefinition)taskNodeDefinition.getConfigure()).getGeneral().getPath(),                ((HttpRequestDefinition)taskNodeDefinition.getConfigure()).getGeneral().getAccessKeyId())) {            valicateErrorMessage="You must specify a value in the following fields: method、path、accessKeyId";            return false;        }        valicateErrorMessage=null;        return true;    }    @Override    public String validateReturnMessage(TaskNodeDefinition taskNodeDefinition){        LOGGER.info("--->HttpRequestConfig validateReturnMessage() the [HTTP Request]", taskNodeDefinition.toString());        validate(taskNodeDefinition);        return valicateErrorMessage;    }

数据库层领域模型

public class HttpRequestDefinition extends HttpRequestConfig implements Serializable {    private GeneralDefinition general;    private RequestDefinition request;    private ResponseDefinition response;    public GeneralDefinition getGeneral() {        return general;    }    public void setGeneral(GeneralDefinition general) {        this.general = general;    }    public RequestDefinition getRequest() {        return request;    }    public void setRequest(RequestDefinition request) {        this.request = request;    }    public ResponseDefinition getResponse() {        return response;    }    public void setResponse(ResponseDefinition response) {        this.response = response;    }}

看完上述内容，你们对java中继承的作用是什么有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注行业资讯频道，感谢大家的支持。