[英]Spring Social Twitter Save Data to MySQL
我正在嘗試從針對TwitterAPI發出的請求中保存一些數據。 我知道,我必須在UpdateTweetsService類中設置所需的對象,但是現在我知道如何解析它們。 這是我到目前為止的內容:
UpdateTweetsService.java類:
import javax.inject.Inject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.social.twitter.api.Tweet;
import org.springframework.social.twitter.api.Twitter;
import java.util.List;
public class UpdateTweetsService {@Value("${screenName}")
private final Twitter twitter;
@Inject
public UpdateTweetsService(Twitter twitter) {
this.twitter = twitter;
}
/**
* Performs a Request to get the UserTimeline from Twitter API
*/
public List<Tweet> tweets() {
return twitter.timelineOperations().getUserTimeline("${screenName}");
}
Tweet.java類:
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.NotEmpty;
@Entity
@Table(name = "tweets")
public class Tweet {
@Id
@GeneratedValue
@Column(columnDefinition = "INT unsigned")
private Integer id;
@NotEmpty
@Length(max = 255)
@Column(columnDefinition = "VARCHAR(255)", length = 255, nullable = false)
private String profileImageUrl;
@NotEmpty
@Length(max = 64)
@Column(columnDefinition = "VARCHAR(64)", length = 64, nullable = false)
private String fromUser;
@NotEmpty
@Column(columnDefinition = "TEXT", nullable = false)
private String text;
@NotEmpty
@Length(max = 255)
@Column(columnDefinition = "VARCHAR(255)", length = 255, nullable = false)
private String url;
@NotEmpty
@Column(columnDefinition = "FLOAT")
private Float createDate;
/*
* Getter & Setter
*/
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getProfileImageUrl() {
return profileImageUrl;
}
public void setProfileImageUrl(String profileImageUrl) {
this.profileImageUrl = profileImageUrl;
}
public String getFromUser() {
return fromUser;
}
public void setFromUser(String fromUser) {
this.fromUser = fromUser;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public Float getCreateDate() {
return createDate;
}
public void setCreateDate(Float createDate) {
this.createDate = createDate;
}
}
您可以使用Spring Data JPA保存您的實體。 使用Spring Boot設置數據庫非常容易。
您可以在我的Github存儲庫中簽出代碼,為此我對其進行了更新。 我使用過PostgreSql
,您可以按照以下步驟通過更新pom.xml
和application.properties
文件輕松地將其更改為MySql
。
您需要執行以下步驟:
在pom.xml中添加spring-boot-starter-data-jpa
和mysql
依賴項
..... <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency>
在您的application.properties
設置數據庫config / properties
..... spring.jpa.hibernate.ddl-auto=update spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.ImprovedNamingStrategy spring.jpa.show-sql=true spring.jpa.database=mysql spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect spring.datasource.url=jdbc:mysql://localhost:3306/sakila spring.datasource.name=sakila spring.datasource.username=mysql spring.datasource.password=password
創建一個已經完成的Entity類TweetEntity
,但是將其從Tweet
重命名為其他名稱,以避免Tweet.class
和org.springframework.social.twitter.api.Tweet.class
之間的混淆
為您的實體創建Spring Data JPA Repositories接口。
package com.rawsanj.tweet.repository; import org.springframework.data.jpa.repository.JpaRepository; import com.rawsanj.tweet.entity.TweetEntity; /** * Spring Data JPA repository for the User entity. */ public interface TweetZRepository extends JpaRepository<TweetEntity, Long> { }
只需在Spring Data Repository上findOne(Long Id)
,您便已經實現了幾種方法(例如save(Entity entity)
, findOne(Long Id)
等)。
讓SpringBoot知道您的存儲庫軟件包,即啟用Jparepositories。
@SpringBootApplication @EnableJpaRepositories("com.rawsanj.tweet.repository") public class Application { .... ..
最后更新您的Controller
:
package com.rawsanj.tweet.controller; .... import com.rawsanj.tweet.entity.TweetEntity; import com.rawsanj.tweet.repository.TweetZRepository ; @Controller @RequestMapping("/") public class HelloController { private TwitterTemplate twitterTemplate; private TweetZRepository tweetZRepository ; @Inject public HelloController(StreamService streamService, TwitterTemplate twitterTemplate, TweetZRepository tweetZRepository ) { this.streamService = streamService; this.twitterTemplate=twitterTemplate; this.tweetZRepository =tweetZRepository ; } @RequestMapping(value = "tweet/{search}/{count}",method=RequestMethod.GET) public String searchTwitter(Model model, @PathVariable String search, @PathVariable int count) { SearchResults results = twitterTemplate.searchOperations().search( new SearchParameters(search) .resultType(SearchParameters.ResultType.RECENT) .count(count)); List<Tweet> tweets = results.getTweets(); model.addAttribute("tweets", tweets); for (Tweet tweet : tweets) { TweetEntity tweetEntity = new TweetEntity(tweet.getText(), tweet.getCreatedAt(), tweet.getFromUser(), tweet.getLanguageCode(), tweet.getLanguageCode()); tweetZRepository.save(tweetEntity); } return "search"; } }
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