[GitHub] [servicecomb-java-chassis] yhs0092 commented on issue #1289: cse uri 添加参数如何操作

[GitBox <gi...@apache.org>]

yhs0092 commented on issue #1289: cse uri 添加参数如何操作
URL: https://github.com/apache/servicecomb-java-chassis/issues/1289#issuecomment-520421086
 
 
   假设provider端有这样一个REST接口方法：
   ```java
   @RestSchema(schemaId = "hello")
   @RequestMapping(path = "/provider/v0")
   public class HelloService {
     @GetMapping(path = "/testQuery")
     public String testQuery(@RequestParam("q1") String q1,
         @RequestParam("q2") String q2) {
       return q1 + q2;
     }
   }
   ```
   在consumer端，你可以这样调用它：
   ```java
   @RestSchema(schemaId = "helloConsumer")
   @Path("/consumer/v0")
   public class HelloConsumerService {
     private RestTemplate restTemplate = RestTemplateBuilder.create();
   
     @Path("/testQuery")
     @GET
     public String testQuery() {
       // 可变长参数，注意与前面的占位符的顺序对应
       String response = restTemplate
           .getForObject(
               "cse://provider/provider/v0/testQuery?q1={q1}&q2={q2}",
               String.class,
               "qqq1", "qqq2");
       System.out.println("response1 = " + response);
   
       // map参数，key值和占位符里的名字对应
       Map<String, String> params = new HashMap<String, String>();
       params.put("q1", "ppp2");
       params.put("q2", "ppp2");
       response = restTemplate.getForObject(
           "cse://provider/provider/v0/testQuery?q1={q1}&q2={q2}",
           String.class,
           params);
       System.out.println("response2 = " + response);
   
       // 或者你可以直接做字符串拼接
       response = restTemplate.getForObject(
           "cse://provider/provider/v0/testQuery?q1=sss1&q2=sss2",
           String.class);
       System.out.println("response3 = " + response);
       return "OK";
     }
   }
   ```
   
   或者你也可以去网上搜一搜别的用法，在网上能找到不少RestTemplate的使用资料 : )

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