因此，我正在嘗試使用 contains 檢查我的數(shù)據(jù)庫中是否存在設(shè)計文檔。if (!dbClient.contains("_design/myDesignDoc")) {//Do stuff}但是我得到一個 java.lang.IllegalArgumentException: Entity may not be null 錯誤，因為 id 中有 _design 的下劃線。java.lang.IllegalArgumentException: Entity may not be null at org.apache.http.util.Args.notNull(Args.java:54) ~[httpcore-4.4.11.jar:4.4.11] at org.apache.http.util.EntityUtils.toString(EntityUtils.java:307) ~[httpcore-4.4.11.jar:4.4.11] at org.lightcouch.CouchDbClientBase.validate(CouchDbClientBase.java:659) ~[lightcouch-0.2.0.jar:na] at org.lightcouch.CouchDbClient$3.process(CouchDbClient.java:223) ~[lightcouch-0.2.0.jar:na] at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:142) ~[httpcore-4.4.11.jar:4.4.11] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:191) ~[httpclient-4.5.9.jar:4.5.9] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.9.jar:4.5.9] at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.9.jar:4.5.9] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.9.jar:4.5.9] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72) ~[httpclient-4.5.9.jar:4.5.9] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.9.jar:4.5.9] at org.lightcouch.CouchDbClientBase.executeRequest(CouchDbClientBase.java:480) ~[lightcouch-0.2.0.jar:na] at org.lightcouch.CouchDbClientBase.head(CouchDbClientBase.java:566) ~[lightcouch-0.2.0.jar:na]我曾經(jīng)能夠做到這一點，但我根本不記得我做了什么。如何查看設(shè)計文檔是否存在？
2 回答
森林海
TA貢獻2011條經(jīng)驗 獲得超2個贊
也許我的建議非常明顯，GET 或 HEAD 應(yīng)該在檢索時回答 HTTP 狀態(tài)代碼：
curl -X HEAD 'http://localhost:5984/your_db/_design/your_design_doc'
只需要弄清楚哪個 LightCouch API 方法將執(zhí)行類似的調(diào)用。
慕絲7291255
TA貢獻1859條經(jīng)驗 獲得超6個贊
好的，雖然我找不到用于 HEAD 的 LightCouch API，但我最終做的是使用這個
JsonObject result = null;
String uri = dbClient.getDBUri() + "_design/myDesignDoc";
try {
result = dbClient.findAny(JsonObject.class, uri);
} catch (Exception e) {
throw new CustomException("Design document could not be found");
} finally {
if (result == null) {
file = new ClassPathResource("json/designDocData.json").getFile();
reader = new JsonReader(new FileReader(file));
data = gson.fromJson(reader, JsonObject.class);
dbClient.save(data);
}
dbClient.findAny 似乎能夠檢索 .contains 和 .find 失敗的設(shè)計文檔。我希望我不必檢索文檔來查看它是否存在并且可以只使用包含，但這是我現(xiàn)在唯一的工作方法
添加回答
舉報
0/150
提交
取消