Question

I m 采用Pop JbdcTemplate with Postgres。

面对灾后复兴开发银行内部准备的声明的麻烦

My query string is:

private static final String SELECT_ALL_PARTIALLY =
            "SELECT login, added FROM admin ORDER BY ? ? OFFSET ? LIMIT ?";

我也想像:

List matches = getJdbcTemplate().query(SELECT_ALL_PARTIALLY,
                (new Object[]{
                    column, // "login" or "added"
                    order,  // "asc" or "desc"
                    offset, 
                    limit
                }),
                new RowMapper() {
                    ...

问题在于<代码>。页: 1 OFFSET...

org.postgresql.util.PSQLException: ERROR: syntax error at or near "$2"
  Position: 61
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2102)
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1835)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:273)
    at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:648) ...

我怎么能把这两名持不同立场的人分开?

Answer 1

邮局允许你将定购指示作为参数。您需要为<代码>asc和desc的次序设立不同的查询处,并选择其中一人执行。

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