SpringBoot整合Gson 整合Fastjson的实例详解

<dependencies>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <!--移除jackson依赖-->
  <exclusions>
   <exclusion>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-json</artifactId>
   </exclusion>
  </exclusions>
 </dependency>
 <!--添加Gson依赖-->
 <dependency>
  <groupId>com.google.code.gson</groupId>
  <artifactId>gson</artifactId>
 </dependency>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
 </dependency>
</dependencies>

/**
 * @Create_Author msfh
 * @Create_Date 2020-11-25 15:54:15
 * @Description User实体
 */
public class User {
 private Integer id;
 private String name;
 private Date birthday;

 @Override
 public String toString() {
  return "User{" +
    "id=" + id +
    ", name='" + name + '\'' +
    ", birthday=" + birthday +
    '}';
 }
 /**省略set&get**/
}

/**
 * @Create_Author msfh
 * @Create_Date 2020-11-25 15:55:15
 * @Description UserController控制器
 */
@RestController
public class UserController {

 @GetMapping("/user")
 public List<User> getUsers(){
  ArrayList<User> users = new ArrayList<>();
  for (int i = 0; i < 10; i++) {
   User user = new User();
   user.setId(i);
   user.setName("msfh-->"+i);
   user.setBirthday(new Date());
   users.add(user);
  }
  return users;
 }

}

# 在之前的一篇博客中有介绍，大家不太明白可以先看一下上一篇博客,这次就不放测试的结果了！
# 在GsonHttpMessageConvertersConfiguration中含有GsonHttpMessageConverter
# 在GsonAutoConfiguration中含有Gson
# 我们可以分别写两个bean去实现gson的配置（GsonHttpMessageConverter或Gson）
# 建议大家没事的话，可以看下源码

/**
 * @Create_Author msfh
 * @Create_Date 2020-11-25 16:05:56
 * @Description WebMvcConfig配置类
 */
@Configuration
public class WebMvcConfig {

 //@Bean
 //GsonHttpMessageConverter gsonHttpMessageConverter(){
 // GsonHttpMessageConverter converter = new GsonHttpMessageConverter();
 // converter.setGson(new GsonBuilder().setDateFormat("yyyy-MM-dd").create());
 // return converter;
 //}

 @Bean
 Gson gson(){
  return new GsonBuilder().setDateFormat("yyyy-MM-dd").create();
 }

}

<dependencies>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <!--移除jackson依赖-->
  <exclusions>
   <exclusion>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-json</artifactId>
   </exclusion>
  </exclusions>
 </dependency>
 <!--添加fastjson依赖-->
 <dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>fastjson</artifactId>
  <version>1.2.74</version>
 </dependency>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
 </dependency>
</dependencies>

/**
 * @Create_Author msfh
 * @Create_Date 2020-11-25 16:05:56
 * @Description WebMvcConfig配置类
 */
@Configuration
public class WebMvcConfig {

 @Bean
 FastJsonHttpMessageConverter fastJsonHttpMessageConverter(){
  FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
  FastJsonConfig config = new FastJsonConfig();
  config.setDateFormat("yyyy/MM/dd");
  converter.setFastJsonConfig(config);
  return converter;
 }

}