CSV Reader - Java for PostgreSQL -


i need load csv table in database.

below table structure.

    column    |          type          |  --------------+------------------------+  ip_from      | bigint                   ip_to        | bigint                   country_code | character(2)             country_name | character varying(64)   region_name  | character varying(128)

i'm using csv reader read , insert file.

csvreader products = new csvreader("e:\\test.csv");              products.readheaders();              while (products.readrecord())              {                         string ip_from = products.get("ip_from"); //int                 string ip_to = products.get("ip_to"); //int                 string country_code = products.get("country_code"); //char                 string country_name = products.get("country_name"); //char

however, code give me error since datatype ip_from , ip_to different.

it should bigint.

i try use parseint method, still not working.

the equivalent postgresql bigint java-type long.

instead of using strings or integers 2 fields (that should strings anyways, alas) should use long:

long ipfrom = long.parselong(products.get("ip_from")); long ipto = long.parselong(products.get("ip_to"));

then again using java wrong approach if have once. if that's case, you're better off using copy command, illustrated in kayaman's answer


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