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Enhance search results with detail

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This commit is contained in:
Tim
2025-07-08 20:13:17 +08:00
parent c917d01b78
commit 857eac14a8
3 changed files with 76 additions and 7 deletions
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4
src/main/java/com/openisle/controller/SearchController.java
View File

@@ -56,6 +56,8 @@ public class SearchController {
dto.setType(r.type());
dto.setId(r.id());
dto.setText(r.text());
dto.setSubText(r.subText());
dto.setExtra(r.extra());
return dto;
})
.collect(Collectors.toList());
@@ -92,5 +94,7 @@ public class SearchController {
private String type;
private Long id;
private String text;
private String subText;
private String extra;
}
}

50
src/main/java/com/openisle/service/SearchService.java
View File

@@ -47,15 +47,33 @@ public class SearchService {
public List<SearchResult> globalSearch(String keyword) {
Stream<SearchResult> users = searchUsers(keyword).stream()
.map(u -> new SearchResult("user", u.getId(), u.getUsername()));
.map(u -> new SearchResult(
"user",
u.getId(),
u.getUsername(),
u.getIntroduction(),
null
));
// Merge post results while removing duplicates between search by content
// and search by title
List<SearchResult> mergedPosts = Stream.concat(
searchPosts(keyword).stream()
.map(p -> new SearchResult("post", p.getId(), p.getTitle())),
.map(p -> new SearchResult(
"post",
p.getId(),
p.getTitle(),
p.getCategory().getName(),
extractSnippet(p.getContent(), keyword, false)
)),
searchPostsByTitle(keyword).stream()
.map(p -> new SearchResult("post_title", p.getId(), p.getTitle()))
.map(p -> new SearchResult(
"post_title",
p.getId(),
p.getTitle(),
p.getCategory().getName(),
extractSnippet(p.getContent(), keyword, true)
))
)
.collect(java.util.stream.Collectors.toMap(
SearchResult::id,
@@ -68,11 +86,33 @@ public class SearchService {
.toList();
Stream<SearchResult> comments = searchComments(keyword).stream()
.map(c -> new SearchResult("comment", c.getId(), c.getContent()));
.map(c -> new SearchResult(
"comment",
c.getId(),
extractSnippet(c.getContent(), keyword, false),
c.getAuthor().getUsername(),
c.getPost().getTitle()
));
return Stream.concat(Stream.concat(users, mergedPosts.stream()), comments)
.toList();
}
public record SearchResult(String type, Long id, String text) {}
private String extractSnippet(String content, String keyword, boolean fromStart) {
if (content == null) return "";
if (fromStart) {
return content.length() > 50 ? content.substring(0, 50) : content;
}
String lower = content.toLowerCase();
String kw = keyword.toLowerCase();
int idx = lower.indexOf(kw);
if (idx == -1) {
return content.length() > 50 ? content.substring(0, 50) : content;
}
int start = Math.max(0, idx - 20);
int end = Math.min(content.length(), idx + kw.length() + 20);
return content.substring(start, end);
}
public record SearchResult(String type, Long id, String text, String subText, String extra) {}
}