我正在使用postgresql作为数据库开发基于Spring的Web应用程序。我在postgresql中使用JSON数据类型。我已使用hibernate自定义用户类型配置实体以支持JSON数据类型。
现在我想使用任何嵌入式数据库测试我的DAO对象。是否有任何嵌入式数据库支持JSON数据类型,可以在spring应用程序中使用。
答案 0 :(得分:5)
当您使用数据库特定功能(例如 PostgreSQL 中的 JSON 支持)时,为了安全起见,您必须使用相同类型的数据库进行测试。在您的情况下,您想测试 DAO 对象:
<强>更新强>
如果您能够在测试环境中运行Docker而不是嵌入式数据库,请通过TestContainers使用真正的Postgres
答案 1 :(得分:0)
package miniCodePrjPkg;
import java.util.List;
import java.util.Map;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.MapListHandler;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
//import com.wix.mysql.EmbeddedMysql;
//
//import static com.wix.mysql.EmbeddedMysql.anEmbeddedMysql;
//import static com.wix.mysql.ScriptResolver.classPathScript;
//import static com.wix.mysql.distribution.Version.v5_7_latest;
public class DslQueryCollList {
public static void main(String[] args) throws Exception {
// apache comm coll cant ,only array is ok..cant json_object eff
// Map m=Maps.
Map myMap = Maps.newHashMap(ImmutableMap.of("name", 999999999, "age", 22));
Map myMap2 = Maps.newHashMap(ImmutableMap.of("name", 8888888, "age", 33));
List li = new ImmutableList.Builder().add(myMap).add(myMap2).build();
System.out.println(li);
// /db/xx.sql
// EmbeddedMysql mysqld = anEmbeddedMysql(v5_7_latest)
// .addSchema("aschema", classPathScript("iniListCache.sql"))
// .start();
// this just start..and u need a cliednt as common to conn..looks trouble than
// sqlite
String sql = " json_extract(jsonfld,'$.age')>30";
List<Map<String, Object>> query = queryList(sql, li);
System.out.println(query);
// run.query(conn, sql, rsh)
}
private static List<Map<String, Object>> queryList(String sql_query, List li)
throws ClassNotFoundException, SQLException, JsonProcessingException {
sql_query="SELECT * FROM sys_data where "+sql_query;
String sql = null;
Class.forName("org.sqlite.JDBC");
Connection c = DriverManager.getConnection("jdbc:sqlite:test.db");
Statement stmt = c.createStatement();
String sql2 = "drop TABLE sys_data ";
exeUpdateSafe(stmt, sql2);
sql2 = "CREATE TABLE sys_data (jsonfld json )";
exeUpdateSafe(stmt, sql2);
// insert into facts values(json_object("mascot", "Our mascot is a dolphin name
// sakila"));
//
for (Object object : li) {
String jsonstr = new ObjectMapper().writeValueAsString(object);
sql = "insert into sys_data values('" + jsonstr + "');";
// sql = "insert into sys_data values('{\"id\":\"19\", \"name\":\"Lida\"}');";
exeUpdateSafe(stmt, sql);
}
//sql = "SELECT json_extract(jsonfld,'$.name') as name1 FROM sys_data limit 1;";
// System.out.println(sql);
QueryRunner run = new QueryRunner();
// maphandler scare_handler
System.out.println(sql_query);
List<Map<String, Object>> query = run.query(c, sql_query, new MapListHandler());
System.out.println(query);
List li9=Lists.newArrayList();
for (Map<String, Object> map : query) {
li9.add(map.get("jsonfld"));
}
return li9;
}
private static void exeUpdateSafe(Statement stmt, String sql2) throws SQLException {
try {
System.out.println(sql2);
System.out.println(stmt.executeUpdate(sql2));
} catch (Exception e) {
e.printStackTrace();
}
}
}