Java是一種強(qiáng)類型語(yǔ)言，而Json是一種輕量級(jí)的數(shù)據(jù)交互格式，它們?cè)诔绦蜷_(kāi)發(fā)中有著廣泛的應(yīng)用。Java Json轉(zhuǎn)class是將Json數(shù)據(jù)轉(zhuǎn)換為Java類的過(guò)程，實(shí)現(xiàn)這個(gè)過(guò)程的關(guān)鍵是依賴于Jackson庫(kù)。

步驟：

1. 引入Jackson庫(kù)

dependencies {
compile 'com.fasterxml.jackson.core:jackson-databind:2.9.9'
}

2. 定義Java類

public class Employee {
private String name;
private int age;
// getter and setter methods
}

3. Json字符串轉(zhuǎn)Java對(duì)象

String json = "{\"name\":\"Tom\",\"age\":26}";
ObjectMapper objectMapper = new ObjectMapper();
Employee employee = objectMapper.readValue(json, Employee.class);

4. Java對(duì)象轉(zhuǎn)Json字符串

ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writeValueAsString(employee);

通過(guò)以上步驟，我們就可以方便地將Json數(shù)據(jù)轉(zhuǎn)換為Java類對(duì)象，同時(shí)也可以將Java對(duì)象轉(zhuǎn)換為Json字符串。