java读取文件-> 转换成Object

java读取文件-> 转换成Object

Java8 新特性

文本内容

2015-12-25 10:39:29 INFO ApiOriginFilter.java {“appVersion”:”3.5.0”,”channels”:”AppStore”,”requestDate”:”2015-12-25 10:39:29”,”deviceModel”:”iPad”,”deviceVersion”:”ios_8.4”,”userId”:”1”,”platform”:”16”,”deviceUUID”:”498104EF5E64BB9D46BDA437E2254CBB”}
2015-12-25 10:39:39 INFO ApiOriginFilter.java {“appVersion”:”3.5.0”,”channels”:”AppStore”,”requestDate”:”2015-12-25 10:39:39”,”deviceModel”:”iPad”,”deviceVersion”:”ios_8.4”,”userId”:”1”,”platform”:”16”,”deviceUUID”:”498104EF5E64BB9D46BDA437E2254CBB”}
2015-12-25 10:39:41 INFO ApiOriginFilter.java {“appVersion”:”3.5.0”,”channels”:”AppStore”,”requestDate”:”2015-12-25 10:39:41”,”deviceModel”:”iPad”,”deviceVersion”:”ios_8.4”,”userId”:”1”,”platform”:”16”,”deviceUUID”:”498104EF5E64BB9D46BDA437E2254CBB”}
2015-12-25 10:39:42 INFO ApiOriginFilter.java {“appVersion”:”3.5.0”,”channels”:”AppStore”,”requestDate”:”2015-12-25 10:39:42”,”deviceModel”:”iPad”,”deviceVersion”:”ios_8.4”,”userId”:”1”,”platform”:”16”,”deviceUUID”:”498104EF5E64BB9D46BDA437E2254CBB”}
2015-12-25 10:39:43 INFO ApiOriginFilter.java {“appVersion”:”3.5.0”,”channels”:”AppStore”,”requestDate”:”2015-12-25 10:39:43”,”deviceModel”:”iPad”,”deviceVersion”:”ios_8.4”,”userId”:”1”,”platform”:”16”,”deviceUUID”:”498104EF5E64BB9D46BDA437E2254CBB””}

测试 Main方法

import com.google.gson.Gson;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public static void main(String[] args) throws IOException {
        Gson gson = new Gson();
        List<String> lines = Files.readAllLines(Paths.get("/Users/songlijun/Work/Dev/VcPunkinService_api.log"), StandardCharsets.UTF_8);

        List<ApiLog> apiLogs = new ArrayList<>();

        for (String line : lines) {
//            System.out.println(line.substring(line.indexOf("{"), line.length()));
            // gson json转换成object
            ApiLog apiLog = gson.fromJson(line.substring(line.indexOf("{"), line.length()), ApiLog.class);
            apiLogs.add(apiLog);
        }

        // java8 lambda表达式
        apiLogs.forEach(System.out::println);


    }

ApiLog 实体类

class ApiLog {


    private String appVersion;
    private String channels;
    private String requestDate;
    private String deviceModel;
    private String deviceVersion;
    private String userId;
    private String platform;
    private String deviceUUID;

    public String getAppVersion() {
        return appVersion;
    }

    public void setAppVersion(String appVersion) {
        this.appVersion = appVersion;
    }

    public String getChannels() {
        return channels;
    }

    public void setChannels(String channels) {
        this.channels = channels;
    }


    public String getRequestDate() {
        return requestDate;
    }

    public void setRequestDate(String requestDate) {
        this.requestDate = requestDate;
    }

    public String getDeviceModel() {
        return deviceModel;
    }

    public void setDeviceModel(String deviceModel) {
        this.deviceModel = deviceModel;
    }

    public String getDeviceVersion() {
        return deviceVersion;
    }

    public void setDeviceVersion(String deviceVersion) {
        this.deviceVersion = deviceVersion;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getPlatform() {
        return platform;
    }

    public void setPlatform(String platform) {
        this.platform = platform;
    }

    public String getDeviceUUID() {
        return deviceUUID;
    }

    public void setDeviceUUID(String deviceUUID) {
        this.deviceUUID = deviceUUID;
    }

    @Override
    public String toString() {
        return "ApiLog{" +
                "appVersion='" + appVersion + '\'' +
                ", channels='" + channels + '\'' +
                ", requestDate='" + requestDate + '\'' +
                ", deviceModel='" + deviceModel + '\'' +
                ", deviceVersion='" + deviceVersion + '\'' +
                ", userId='" + userId + '\'' +
                ", platform='" + platform + '\'' +
                ", deviceUUID='" + deviceUUID + '\'' +
                '}';
    }
}