Ribbon的自定义配置(java代码方式)生效条件
- 第一种方式：将TestConfiguration类放在application启动类上层
- 第二种方式：将TestConfiguration类放在application启动类同层及以下，
- 需在application启动类上添加注解
@ComponentScan(excludeFilters = { @ComponentScan.Filter(type = FilterType.ANNOTATION, value = ExcludeFromComponentScan.class) })- 需在application启动类同层添加接口类ExcludeFromComponentScan.java：
package com.mmzs.cloud; public @interface ExcludeFromComponentScan { }- 并在ExcludeFromComponentScan.class接口添加注解@ExcludeFromComponentScan;并且注释如下内容：
@Autowired IClientConfig config;
Ribbon的注意事项
0、Ribbon的自定义配置优先级：
配置文件>java代码>默认配置
1、自定义配置时，@Configuration和@ComponentScan包不应重叠
- 示例：
@RibbonClient(name = "microservice-provider-user", configuration = TestConfiguration.class)
@ComponentScan(excludeFilters = { @ComponentScan.Filter(type = FilterType.ANNOTATION, value = ExcludeFromComponentScan.class) })
2、使用RestTemplate时，想要获得一个List时，应该用数组，而不应该直接用List
- [ ] ==错误用法==
List<User> users = this.restTemplate.getForObject("http://microservice-provider-user/list-all/", List.class);
for (User user : users) {
System.out.println("輸出：" + user.getId() + "+" + user.getUsername());
}
- [x] ==正确用法==
User[] users = this.restTemplate.getForObject("http://microservice-provider-user/list-all", User[].class);
List<User> lists = Arrays.asList(users);
for (User user : lists) {
System.out.println("輸出：" + user.getId() + "+" + user.getUsername());
}
