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1. Intelij 启动 Tomcat 后，有乱码，出现 “淇℃伅 [main] org.apach”

解决办法 :

修改 tomcat 安装目录下的 config/logging.properties 文件

java.util.logging.ConsoleHandler.encoding = GBK

2. delpoy website: http://localhost:8080/jupiter-war-exploded/game

解决办法：

Run -> Configurations -> Deployment

now opens up at http://localhost:8080/jupiter/game:

3. postman

POST http://localhost:8080/jupiter/game

4. IDEA tomcat 404

5. HTTP 500 –..JSONObject["name"] not found.

解决办法：

replay a new client id. 😅 😅 😅

5. Postman?? IDEA offers better options: Tools -> HttpClient

GET https://api.twitch.tv/helix/streams?game_id=12924 Authorization: Bearer jo3r1bpdgk5gx41zx2wuajygdb1d8b Client-Id: t5bc5a4tab71mqgs1f880ent6cx8j4

Authorization, Client-Id is refer to your own data under the postman headers tab

6. lombok and Builder pattern

Without the lombok, the code would be like below:

you need use delombok to find the problem:

Lombok

7. Jackson tutorial Jackson

 @JsonProperty("thumbnail_url")
        private String thumbnailUrl;
 // Convert JSON format data returned from Twitch to an Arraylist of Game objects
 ObjectMapper mapper = new ObjectMapper();
        try {
            return Arrays.asList(mapper.readValue(data, Game[].class));

• @JsonIgnoreProperties(ignoreUnknown = true) indicates that other fields in the response can be safely ignored. Without this, you’ll get an exception at runtime.

• @JsonInclude(JsonInclude.Include.NON_NULL) indicates that null fields can be skipped and not included.

• @JsonDeserialize indicates that Jackson needs to use Game.Builder when constructing a Game object from JSON strings.

8. Failed to connect to api.twitch.com port 443: Connection

中国特色错误，换 EXpressVPN