我创建了一个Spring Boot应用程序,该应用程序通过HTTP Post将一些经过分析的Twitter内容作为JSON对象获取。JSON对象如下所示:
{
"analyzedKeywords": [
{
"keyword": "VW",
"tweets": [
{
"indicoScore": 0.8174982823,
"popularity": 5659,
"tweet": {
"createdAt": 1512660826000,
"favouriteCount": 0,
"retweet": true,
"retweetCount": 5,
"retweetedStatus": {
"createdAt": 1512660253000,
"favouriteCount": 1,
"retweet": false,
"retweetCount": 5,
"retweetedStatus": null,
"tweetText": "No time for twitter drama because those VW Polo's aren't gonna strip themselves",
"user": {
"email": null,
"favouritesCount": 1154,
"followersCount": 1080,
"friendsCount": 295,
"id": 197398224,
"profileImageURL": "http://pbs.twimg.com/profile_images/872393691427745792/8DhxJY5-_normal.jpg",
"statusesCount": 120014,
"username": "Kabelo"
}
},
"tweetText": "No time for twitter drama because those VW Polo's aren't gonna strip themselves ",
"user": {
"email": null,
"favouritesCount": 9820,
"followersCount": 5654,
"friendsCount": 558,
"id": 58419134,
"profileImageURL": "http://pbs.twimg.com/profile_images/936993708142157825/BgvNafEp_normal.jpg",
"statusesCount": 124848,
"username": "\ud83c\udf93 Mmina T\u0161hipi \ud83c\udf93"
}
}
}
]
},
{
"keyword": "Tesla",
"tweets": [
{
"indicoScore": 0.9143414881,
"popularity": 10027,
"tweet": {
"createdAt": 1512660797000,
"favouriteCount": 0,
"retweet": true,
"retweetCount": 4,
"retweetedStatus": {
"createdAt": 1512602297000,
"favouriteCount": 5,
"retweet": false,
"retweetCount": 4,
"retweetedStatus": null,
"tweetText": "Anyone know of a plug-in vehicle that can seat 6 and, preferably, tow? \nSo far, our list includes the @Tesla Model\u2026 ",
"user": {
"email": null,
"favouritesCount": 28,
"followersCount": 39,
"friendsCount": 13,
"id": 930140890189975553,
"profileImageURL": "http://pbs.twimg.com/profile_images/931266152973484032/I6PltHR1_normal.jpg",
"statusesCount": 32,
"username": "InsideEVs Forum"
}
},
"tweetText": "Anyone know of a plug-in vehicle that can seat 6 and, preferably, tow? \nSo far, our list includes the @Tesla Model\u2026 ",
"user": {
"email": null,
"favouritesCount": 6,
"followersCount": 10023,
"friendsCount": 18,
"id": 568621669,
"profileImageURL": "http://pbs.twimg.com/profile_images/894917277925158914/nZefv1rw_normal.jpg",
"statusesCount": 20263,
"username": "InsideEVs"
}
}
}
]
}
]
}
获取JSON的方法如下所示:
@RequestMapping(method = RequestMethod.POST, consumes = "application/json")
public ResponseEntity<byte[]> Post(@RequestBody AnalyzedKeywordList analyzedKeywords) {
Document document = new Document();
PdfWriter writer = null;
...
当我从IntelliJ运行代码并将此JSON发布到我的服务时,AnalyzedKeyWordList充满了关键字对象“ VW”和“ TESLA”。这样就行了。
类“ AnalyzedKeywordList”看起来像这样:
导入java.util.List;
public class AnalyzedKeywordList {
List<AnalyzedKeyword> analyzedKeywords;
public AnalyzedKeywordList(List<AnalyzedKeyword> analyzedKeywords) {
this.analyzedKeywords = analyzedKeywords;
}
public AnalyzedKeywordList(){}
public List<AnalyzedKeyword> getAnalyzedKeywords() {
return analyzedKeywords;
}
public void setAnalyzedKeywords(List<AnalyzedKeyword> analyzedKeywords) {
this.analyzedKeywords = analyzedKeywords;
}
}
AnalyzedKeyword看起来像这样(我删除了getter和setter使其更短):
public class AnalyzedKeyword {
private String keyword;
private List<AnalyzedTweet> tweets;
public AnalyzedKeyword(){}
}
AnalyzedTweet(我删除了getter和setter方法,使其更短):
public class AnalyzedTweet {
private float indicoScore;
private Tweet tweet;
private float popularity;
public AnalyzedTweet(){}
public AnalyzedTweet(float indicoScore, Tweet tweet, float popularity) {
this.indicoScore = indicoScore;
this.tweet = tweet;
this.popularity = popularity;
}
}
推文(删除吸气剂/设置器):
public class Tweet {
private String tweetText;
private boolean isRetweet;
private Date createdAt;
private float favouriteCount;
private float retweetCount;
private Tweet retweetedStatus;
private TwitterUser user;
public Tweet(){}
}
TwitterUser(已删除getter / setter):
public class TwitterUser {
private long id;
private String username;
private String email;
private String profileImageURL;
private float followersCount;
private float friendsCount;
private float favouritesCount;
private float statusesCount;
public TwitterUser(){}
}
现在,我正在编译一个.jar文件,并使用docker对其进行组合(以及其他一些服务):
FROM openjdk:8
ADD target/report-service.jar report-service.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","report-service.jar"]
启动Docker容器后,我再次将完全相同的Post请求发送给运行在Docker容器中的Spring引导服务,但由于失败而失败
WARN 1 --- [nio-8080-exec-2] .w.s.m.s.DefaultHandlerExceptionResolver : Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
report-service_1 | at [Source: java.io.PushbackInputStream@4086f71a; line: 3, column: 1]
我正在通过``docker-compose up''启动我的Docker容器。这还会创建一些运行良好的其他容器。
version: '3'
services:
twitter-service:
build: ./twitter
ports:
- "5000:8080"
analyse-service:
build: ./analysis_py
volumes:
- ./analysis_py:/usr/src/app
ports:
- "5001:80"
report-service:
build: ./report
ports:
- "5002:8080"
frontend:
build: ./frontend # specify the directory of the Dockerfile
#volumes:
# - ./frontend:/usr/src/app
ports:
- "4200:4200"
泊坞窗是否更改了请求的主体,或者为什么它不起作用?
我为我的问题找到了解决方案。我的代码工作正常,但运行命令时似乎未更新Docker VM
docker-compose up
并且部署了我的Spring Boot应用程序的旧版本,而不是新版本。当我关闭Docker,删除虚拟机并运行上面的命令时,Docker创建了一个新的VM,它可以完美地工作。
我不知道为什么会这样,因为Docker文档指出:
如果已有用于服务的容器,并且在创建容器后更改了服务的配置或映像,则docker-compose up会通过停止并重新创建容器(保留装入的卷)来获取更改。
本文收集自互联网,转载请注明来源。
如有侵权,请联系 [email protected] 删除。
我来说两句