Java 6中java.nio.file.Files的替代方法

Z时代
2024-01-10
分类：问答

我有以下使用Java 7功能（如

import java.io.File;
import java.io.IOException;
import java.io.StringWriter;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.node.ObjectNode;
public class JacksonObjectMapper {
    public static void main(String[] args) throws IOException {
        byte[] jsonData = Files.readAllBytes(Paths.get("employee.txt"));
        ObjectMapper objectMapper = new ObjectMapper();
        Employee emp = objectMapper.readValue(jsonData, Employee.class);
        System.out.println("Employee Object\n"+emp);
        Employee emp1 = createEmployee();
        objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
        StringWriter stringEmp = new StringWriter();
        objectMapper.writeValue(stringEmp, emp1);
        System.out.println("Employee JSON is\n"+stringEmp);
    }
}