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DeepSeek R1 × 飛書多維表格賦能教育領(lǐng)域
List < Rating > ratings = new ArrayList < > ();
ratings.add(new Rating("1234", 4));
ratings.add(new Rating("5678", 5));
為了獲取電影信息,我們將使用REST模板調(diào)用電影信息服務(wù)。
為了簡化演示,我們暫時(shí)硬編碼評(píng)分?jǐn)?shù)據(jù)。在實(shí)際應(yīng)用中,這些數(shù)據(jù)將通過API獲取。
public class Rating {
private String movieId;
private int rating;
public Rating(String movieId, int rating) {
this.movieId = movieId;
this.rating = rating;
}
// Getters and setters
}
創(chuàng)建一個(gè)電影信息模型類,用于存儲(chǔ)電影詳細(xì)信息。
public class Movie {
private String movieId;
private String name;
public Movie(String movieId, String name) {
this.movieId = movieId;
this.name = name;
}
// Getters and setters
}
對于每個(gè)評(píng)分,我們將循環(huán)調(diào)用電影信息服務(wù)獲取電影詳細(xì)信息。
private List < CatalogItem > getCatalogItems(List < Rating > ratings) {
return ratings.stream()
.map(this::getCatalogItem)
.collect(Collectors.toList());
}
private CatalogItem getCatalogItem(Rating rating) {
Movie movie = restTemplate.getForObject(
"http://localhost:8080/movies/" + rating.getMovieId(),
Movie.class
);
return new CatalogItem(
movie.getName(),
"Test Description",
rating.getRating()
);
}
在代碼中創(chuàng)建REST模板實(shí)例,用于發(fā)送HTTP請求并接收響應(yīng)。
@Bean
public RestTemplate getRestTemplate() {
return new RestTemplate();
}
使用REST模板的getForObject
方法調(diào)用API,并將響應(yīng)轉(zhuǎn)換為電影信息對象。
Movie movie = restTemplate.getForObject(
"http://localhost:8080/movies/" + rating.getMovieId(),
Movie.class
);
確保電影信息類中有空構(gòu)造函數(shù),以便正確反序列化。
public class Movie {
private String movieId;
private String name;
public Movie() {}
public Movie(String movieId, String name) {
this.movieId = movieId;
this.name = name;
}
// Getters and setters
}
將獲取的電影信息整合到目錄項(xiàng)中,并返回給用戶。
public class CatalogItem {
private String name;
private String description;
private int rating;
public CatalogItem(String name, String description, int rating) {
this.name = name;
this.description = description;
this.rating = rating;
}
// Getters and setters
}
討論如何使用異步方式調(diào)用API,以提高應(yīng)用的性能和響應(yīng)速度。
private List < CatalogItem > getCatalogItemsAsync(List < Rating > ratings) {
List < CompletableFuture < CatalogItem >> futures = ratings.stream()
.map(this::getCatalogItemAsync)
.collect(Collectors.toList());
return futures.stream()
.map(CompletableFuture::join)
.collect(Collectors.toList());
}
private CompletableFuture < CatalogItem > getCatalogItemAsync(Rating rating) {
return CompletableFuture.supplyAsync(() - > {
Movie movie = restTemplate.getForObject(
"http://localhost:8080/movies/" + rating.getMovieId(),
Movie.class
);
return new CatalogItem(
movie.getName(),
"Test Description",
rating.getRating()
);
});
}
處理API調(diào)用過程中可能出現(xiàn)的錯(cuò)誤,確保應(yīng)用的健壯性和可靠性。
private CatalogItem getCatalogItemWithErrorHandling(Rating rating) {
try {
Movie movie = restTemplate.getForObject(
"http://localhost:8080/movies/" + rating.getMovieId(),
Movie.class
);
return new CatalogItem(
movie.getName(),
"Test Description",
rating.getRating()
);
} catch (RestClientException e) {
// Handle error
return new CatalogItem("Movie not found", "Description", 0);
}
}
通過本教程,我們學(xué)習(xí)了如何在微服務(wù)架構(gòu)中調(diào)用和整合不同服務(wù)的API。希望這些內(nèi)容對你有所幫助!
原文引自YouTube視頻:https://www.youtube.com/watch?v=WPKv8NA-ZhE