之前,笔者写了《使用Spring Cloud Feign上传文件》。近日,有同事在对接遗留的Struts古董系统,需要使用Feign实现Form表单提交。其实步骤大同小异,本文附上步骤,算是对之前那篇的补充。
添加依赖:
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< dependency > < groupId >io.github.openfeign.form</ groupId > < artifactId >feign-form</ artifactId > < version >3.2.2</ version > </ dependency > < dependency > < groupId >io.github.openfeign.form</ groupId > < artifactId >feign-form-spring</ artifactId > < version >3.2.2</ version > </ dependency > |
Feign Client示例:
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@FeignClient (name = "xxx" , url = "http://www.itmuch.com/" , configuration = TestFeignClient.FormSupportConfig. class ) public interface TestFeignClient { @PostMapping (value = "/test" , consumes = {MediaType.APPLICATION_FORM_URLENCODED_VALUE}, produces = {MediaType.APPLICATION_JSON_UTF8_VALUE} ) void post(Map<String, ?> queryParam); class FormSupportConfig { @Autowired private ObjectFactory<HttpMessageConverters> messageConverters; // new一个form编码器,实现支持form表单提交 @Bean public Encoder feignFormEncoder() { } // 开启Feign的日志 @Bean public Logger.Level logger() { return Logger.Level.FULL; } } } |
调用示例:
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@GetMapping ( "/user/{id}" ) public User findById( @PathVariable Long id) { HashMap<String, String> param = Maps.newHashMap(); param.put( "username" , "zhangsan" ); param.put( "password" , "pwd" ); this .testFeignClient.post(param); return new User(); } |
日志:
...[TestFeignClient#post] ---> POST http://www.baidu.com/test HTTP/1.1
...[TestFeignClient#post] Accept: application/json;charset=UTF-8
...[TestFeignClient#post] Content-Type: application/x-www-form-urlencoded; charset=UTF-8
...[TestFeignClient#post] Content-Length: 30
...[TestFeignClient#post]
...[TestFeignClient#post] password=pwd&username=zhangsan
...[TestFeignClient#post] ---> END HTTP (30-byte body)
由日志可知,此时Feign已能使用Form表单方式提交数据。
参考文档
https://github.com/OpenFeign/feign-form
https://stackoverflow.com/questions/35803093/how-to-post-form-url-encoded-data-with-spring-cloud-feign
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.itmuch.com/spring-cloud-sum/feign-form-params/