我目前正在使用 OMDB API，它可以將獲取查詢作為 JSON 物件或 XML 回傳。使用 JSON 是我想學習的東西，它通常似乎是我想要做的事情的最佳解決方案。我希望的實作是允許用戶搜索電影，然后從串列中選擇正確的電影。我目前正在使用 google.gson 庫。
我遇到的問題是，使用 OMDB 按標題搜索電影，此示例為“batman”，回傳以下字串：
{"Search":[{"Title":"Batman Begins","Year":"2005","imdbID":"tt0372784","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BOTY4YjI2N2MtYmFlMC00ZjcyLTg3YjEtMDQyM2ZjYzQ5YWFkXkEyXkFqcGdeQXVyMTQxNzMzNDI@._V1_SX300.jpg"},{"Title":"Batman v Superman: Dawn of Justice","Year":"2016","imdbID":"tt2975590","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BYThjYzcyYzItNTVjNy00NDk0LTgwMWQtYjMwNmNlNWJhMzMyXkEyXkFqcGdeQXVyMTQxNzMzNDI@._V1_SX300.jpg"},{"Title":"Batman","Year":"1989","imdbID":"tt0096895","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BMTYwNjAyODIyMF5BMl5BanBnXkFtZTYwNDMwMDk2._V1_SX300.jpg"},{"Title":"Batman Returns","Year":"1992","imdbID":"tt0103776","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BOGZmYzVkMmItM2NiOS00MDI3LWI4ZWQtMTg0YWZkODRkMmViXkEyXkFqcGdeQXVyODY0NzcxNw@@._V1_SX300.jpg"},{"Title":"Batman Forever","Year":"1995","imdbID":"tt0112462","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BNDdjYmFiYWEtYzBhZS00YTZkLWFlODgtY2I5MDE0NzZmMDljXkEyXkFqcGdeQXVyMTMxODk2OTU@._V1_SX300.jpg"},{"Title":"Batman & Robin","Year":"1997","imdbID":"tt0118688","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BMGQ5YTM1NmMtYmIxYy00N2VmLWJhZTYtN2EwYTY3MWFhOTczXkEyXkFqcGdeQXVyNTA2NTI0MTY@._V1_SX300.jpg"},{"Title":"The Lego Batman Movie","Year":"2017","imdbID":"tt4116284","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BMTcyNTEyOTY0M15BMl5BanBnXkFtZTgwOTAyNzU3MDI@._V1_SX300.jpg"},{"Title":"Batman: The Animated Series","Year":"1992–1995","imdbID":"tt0103359","Type":"series","Poster":"https://m.media-amazon.com/images/M/MV5BOTM3MTRkZjQtYjBkMy00YWE1LTkxOTQtNDQyNGY0YjYzNzAzXkEyXkFqcGdeQXVyOTgwMzk1MTA@._V1_SX300.jpg"},{"Title":"Batman: Under the Red Hood","Year":"2010","imdbID":"tt1569923","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BNmY4ZDZjY2UtOWFiYy00MjhjLThmMjctOTQ2NjYxZGRjYmNlL2ltYWdlL2ltYWdlXkEyXkFqcGdeQXVyNTAyODkwOQ@@._V1_SX300.jpg"},{"Title":"Batman: The Dark Knight Returns, Part 1","Year":"2012","imdbID":"tt2313197","Type":"movie","Poster":"https://m.media-amazon.com/images/M/MV5BMzIxMDkxNDM2M15BMl5BanBnXkFtZTcwMDA5ODY1OQ@@._V1_SX300.jpg"}],"totalResults":"490","Response":"True"}
到目前為止，我已經設法使用 洗掉了{"Search":[和],"totalResults":"490","Response":"True"}部分sendGetRequest(requestURL).substring(11, sendGetRequest(requestURL).length()-41);，但我似乎仍然無法將字串決議為 JSON。我嘗試使用 String.split 和 Matcher/Pattern 與各種正則運算式來分離 JsonObjects。我也試過 JSONArray，但無濟于事。
我是 JSON 的新手，所以我不太可能遺漏一些明顯的東西或完全誤解 JSON。
uj5u.com熱心網友回復：
首先根據需要定義一個新的自定義類：
import com.fasterxml.jackson.annotation.JsonProperty;
public class YourClass {
@JsonProperty("Title")
private String title;
@JsonProperty("Year")
private String year;
private String imdbID;
@JsonProperty("Type")
private String type;
@JsonProperty("Poster")
private String poster;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getYear() {
return year;
}
public void setYear(String year) {
this.year = year;
}
public String getImdbID() {
return imdbID;
}
public void setImdbID(String imdbID) {
this.imdbID = imdbID;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getPoster() {
return poster;
}
public void setPoster(String poster) {
this.poster = poster;
}
@Override
public String toString() {
return "YourClass{"
"title='" title '\''
", year='" year '\''
", imdbID='" imdbID '\''
", type='" type '\''
", poster='" poster '\''
'}';
}
}
然后你可以簡單地決議你的 JSON，這是主要的方法：
public static void main(String[] args) throws JsonProcessingException {
SpringApplication.run(Demo2Application.class, args);
ObjectMapper objectMapper = new ObjectMapper();
List<YourClass> yourClassList = objectMapper.readValue("[{\"Title\":\"Batman Begins\",\"Year\":\"2005\",\"imdbID\":\"tt0372784\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BOTY4YjI2N2MtYmFlMC00ZjcyLTg3YjEtMDQyM2ZjYzQ5YWFkXkEyXkFqcGdeQXVyMTQxNzMzNDI@._V1_SX300.jpg\"},{\"Title\":\"Batman v Superman: Dawn of Justice\",\"Year\":\"2016\",\"imdbID\":\"tt2975590\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BYThjYzcyYzItNTVjNy00NDk0LTgwMWQtYjMwNmNlNWJhMzMyXkEyXkFqcGdeQXVyMTQxNzMzNDI@._V1_SX300.jpg\"},{\"Title\":\"Batman\",\"Year\":\"1989\",\"imdbID\":\"tt0096895\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BMTYwNjAyODIyMF5BMl5BanBnXkFtZTYwNDMwMDk2._V1_SX300.jpg\"},{\"Title\":\"Batman Returns\",\"Year\":\"1992\",\"imdbID\":\"tt0103776\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BOGZmYzVkMmItM2NiOS00MDI3LWI4ZWQtMTg0YWZkODRkMmViXkEyXkFqcGdeQXVyODY0NzcxNw@@._V1_SX300.jpg\"},{\"Title\":\"Batman Forever\",\"Year\":\"1995\",\"imdbID\":\"tt0112462\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BNDdjYmFiYWEtYzBhZS00YTZkLWFlODgtY2I5MDE0NzZmMDljXkEyXkFqcGdeQXVyMTMxODk2OTU@._V1_SX300.jpg\"},{\"Title\":\"Batman & Robin\",\"Year\":\"1997\",\"imdbID\":\"tt0118688\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BMGQ5YTM1NmMtYmIxYy00N2VmLWJhZTYtN2EwYTY3MWFhOTczXkEyXkFqcGdeQXVyNTA2NTI0MTY@._V1_SX300.jpg\"},{\"Title\":\"The Lego Batman Movie\",\"Year\":\"2017\",\"imdbID\":\"tt4116284\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BMTcyNTEyOTY0M15BMl5BanBnXkFtZTgwOTAyNzU3MDI@._V1_SX300.jpg\"},{\"Title\":\"Batman: The Animated Series\",\"Year\":\"1992–1995\",\"imdbID\":\"tt0103359\",\"Type\":\"series\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BOTM3MTRkZjQtYjBkMy00YWE1LTkxOTQtNDQyNGY0YjYzNzAzXkEyXkFqcGdeQXVyOTgwMzk1MTA@._V1_SX300.jpg\"},{\"Title\":\"Batman: Under the Red Hood\",\"Year\":\"2010\",\"imdbID\":\"tt1569923\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BNmY4ZDZjY2UtOWFiYy00MjhjLThmMjctOTQ2NjYxZGRjYmNlL2ltYWdlL2ltYWdlXkEyXkFqcGdeQXVyNTAyODkwOQ@@._V1_SX300.jpg\"},{\"Title\":\"Batman: The Dark Knight Returns, Part 1\",\"Year\":\"2012\",\"imdbID\":\"tt2313197\",\"Type\":\"movie\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BMzIxMDkxNDM2M15BMl5BanBnXkFtZTcwMDA5ODY1OQ@@._V1_SX300.jpg\"}]", new TypeReference<ArrayList<YourClass>>() {});
for (YourClass yourClass: yourClassList) {
System.out.println(yourClass);
}
}
PS：請記住，您不能[]像您在問題中所說的那樣從 JSON 中洗掉括號。
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