Spring Boot JDBC Stored Procedure Examples

摘要: In this tutorial, we will show you how to use Spring Boot JDBC SimpleJdbcCall to call a stored procedure and stored function from a Oracle database.

In this tutorial, we will show you how to use Spring Boot JDBC SimpleJdbcCall to call a stored procedure and stored function from a Oracle database.

Technologies used :

  • Spring Boot 2.1.2.RELEASE
  • Spring JDBC 5.1.4.RELEASE
  • Oracle database 19c
  • HikariCP 3.2.0
  • Maven 3
  • Java 8

Unlike JdbcTemplate, Spring Boot didn’t create any SimpleJdbcCall automatically, we have to create it manually.

Note
This example extends the previous Spring Boot JDBC examples, adds support for SimpleJdbcCall

1. Test Data

1.1 Create a table and save 4 books for testing.

CREATE TABLE BOOKS(
    ID NUMBER GENERATED ALWAYS as IDENTITY(START with 1 INCREMENT by 1),
    NAME VARCHAR2(100) NOT NULL,
    PRICE NUMBER(15, 2) NOT NULL,
    CONSTRAINT book_pk PRIMARY KEY (ID)
);

	List<Book> books = Arrays.asList(
			new Book("Thinking in Java", new BigDecimal("46.32")),
			new Book("Mkyong in Java", new BigDecimal("1.99")),
			new Book("Getting Clojure", new BigDecimal("37.3")),
			new Book("Head First Android Development", new BigDecimal("41.19"))
	);
	books.forEach(book -> {
		log.info("Saving...{}", book.getName());
		bookRepository.save(book);
	});

2. Stored Procedure

2.1 A stored procedure to return a single result.

	CREATE OR REPLACE PROCEDURE get_book_by_id(
        p_id IN BOOKS.ID%TYPE,
        o_name OUT BOOKS.NAME%TYPE,
        o_price OUT BOOKS.PRICE%TYPE)
    AS
    BEGIN
        SELECT NAME , PRICE INTO o_name, o_price from BOOKS WHERE ID = p_id;
    END;

2.2 We can init the SimpleJdbcCall via @PostConstruct.

StoredProcedure1.java
package com.mkyong.sp;
import com.mkyong.Book;
import com.mkyong.repository.BookRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;
import org.springframework.jdbc.core.simple.SimpleJdbcCall;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import java.math.BigDecimal;
import java.util.Map;
import java.util.Optional;
@Component
public class StoredProcedure1 {
    private static final Logger log = LoggerFactory.getLogger(StoredProcedure1.class);
    @Autowired
    @Qualifier("jdbcBookRepository")
    private BookRepository bookRepository;
    @Autowired
    private JdbcTemplate jdbcTemplate;
    private SimpleJdbcCall simpleJdbcCall;
    // init SimpleJdbcCall
    @PostConstruct
    void init() {
        // o_name and O_NAME, same
        jdbcTemplate.setResultsMapCaseInsensitive(true);
        simpleJdbcCall = new SimpleJdbcCall(jdbcTemplate)
                .withProcedureName("get_book_by_id");
    private static final String SQL_STORED_PROC = ""
            + " CREATE OR REPLACE PROCEDURE get_book_by_id "
            + " ("
            + "  p_id IN BOOKS.ID%TYPE,"
            + "  o_name OUT BOOKS.NAME%TYPE,"
            + "  o_price OUT BOOKS.PRICE%TYPE"
            + " ) AS"
            + " BEGIN"
            + "  SELECT NAME, PRICE INTO o_name, o_price from BOOKS WHERE ID = p_id;"
            + " END;";
    public void start() {
        log.info("Creating Store Procedures and Function...");
        jdbcTemplate.execute(SQL_STORED_PROC);
        /* Test Stored Procedure */
        Book book = findById(2L).orElseThrow(IllegalArgumentException::new);
        // Book{id=2, name='Mkyong in Java', price=1.99}
        System.out.println(book);
    Optional<Book> findById(Long id) {
        SqlParameterSource in = new MapSqlParameterSource()
                .addValue("p_id", id);
        Optional result = Optional.empty();
        try {
            Map out = simpleJdbcCall.execute(in);
            if (out != null) {
                Book book = new Book();
                book.setId(id);
                book.setName((String) out.get("O_NAME"));
                book.setPrice((BigDecimal) out.get("O_PRICE"));
                result = Optional.of(book);
        } catch (Exception e) {
            // ORA-01403: no data found, or any java.sql.SQLException
            System.err.println(e.getMessage());
        return result;

3. Stored Procedure #SYS_REFCURSOR

3.1 A stored procedure to return a ref cursor.

CREATE OR REPLACE PROCEDURE get_book_by_name(
   p_name IN BOOKS.NAME%TYPE,
   o_c_book OUT SYS_REFCURSOR)
AS
BEGIN
  OPEN o_c_book FOR
  SELECT * FROM BOOKS WHERE NAME LIKE '%' || p_name || '%';
END;

3.2 BeanPropertyRowMapper to map the cursor result to book object.

StoredProcedure2.java
package com.mkyong.sp;
import com.mkyong.Book;
import com.mkyong.repository.BookRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;
import org.springframework.jdbc.core.simple.SimpleJdbcCall;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import java.util.Collections;
import java.util.List;
import java.util.Map;
@Component
public class StoredProcedure2 {
    private static final Logger log = LoggerFactory.getLogger(StoredProcedure2.class);
    @Autowired
    @Qualifier("jdbcBookRepository")
    private BookRepository bookRepository;
    @Autowired
    private JdbcTemplate jdbcTemplate;
    private SimpleJdbcCall simpleJdbcCallRefCursor;
    // init SimpleJdbcCall
    @PostConstruct
    public void init() {
        // o_name and O_NAME, same
        jdbcTemplate.setResultsMapCaseInsensitive(true);
        // Convert o_c_book SYS_REFCURSOR to List<Book>
        simpleJdbcCallRefCursor = new SimpleJdbcCall(jdbcTemplate)
                .withProcedureName("get_book_by_name")
                .returningResultSet("o_c_book",
                        BeanPropertyRowMapper.newInstance(Book.class));
    private static final String SQL_STORED_PROC_REF = ""
            + " CREATE OR REPLACE PROCEDURE get_book_by_name "
            + " ("
            + "  p_name IN BOOKS.NAME%TYPE,"
            + "  o_c_book OUT SYS_REFCURSOR"
            + " ) AS"
            + " BEGIN"
            + "  OPEN o_c_book FOR"
            + "  SELECT * FROM BOOKS WHERE NAME LIKE '%' || p_name || '%';"
            + " END;";
    public void start() {
		log.info("Creating Store Procedures and Function...");
        jdbcTemplate.execute(SQL_STORED_PROC_REF);
        /* Test Stored Procedure RefCursor */
        List<Book> books = findBookByName("Java");
        // Book{id=1, name='Thinking in Java', price=46.32}
        // Book{id=2, name='Mkyong in Java', price=1.99}
        books.forEach(x -> System.out.println(x));
    List<Book> findBookByName(String name) {
        SqlParameterSource paramaters = new MapSqlParameterSource()
                .addValue("p_name", name);
        Map out = simpleJdbcCallRefCursor.execute(paramaters);
        if (out == null) {
            return Collections.emptyList();
        } else {
            return (List) out.get("o_c_book");

4. Stored Function

4.1 Create two functions for testing.

CREATE OR REPLACE FUNCTION get_price_by_id(p_id IN BOOKS.ID%TYPE)
RETURN NUMBER
IS o_price BOOKS.PRICE%TYPE;
BEGIN
    SELECT PRICE INTO o_price from BOOKS WHERE ID = p_id;
    RETURN(o_price);
END;
CREATE OR REPLACE FUNCTION get_database_time
RETURN VARCHAR2
IS o_date VARCHAR2(20);
BEGIN
    SELECT TO_CHAR(SYSDATE, 'DD-MON-YYYY HH:MI:SS') INTO o_date FROM dual;
    RETURN(o_date);
END;

4.2. For Stored Function, call it with SimpleJdbcCall.executeFunction

StoredFunction.java
package com.mkyong.sp;
import com.mkyong.repository.BookRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;
import org.springframework.jdbc.core.simple.SimpleJdbcCall;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import java.math.BigDecimal;
@Component
public class StoredFunction {
    private static final Logger log = LoggerFactory.getLogger(StoredFunction.class);
    @Autowired
    @Qualifier("jdbcBookRepository")
    private BookRepository bookRepository;
    @Autowired
    private JdbcTemplate jdbcTemplate;
    private SimpleJdbcCall simpleJdbcCallFunction1;
    private SimpleJdbcCall simpleJdbcCallFunction2;
    // init SimpleJdbcCall
    @PostConstruct
    public void init() {
        jdbcTemplate.setResultsMapCaseInsensitive(true);
        simpleJdbcCallFunction1 = new SimpleJdbcCall(jdbcTemplate)
			.withFunctionName("get_price_by_id");
        simpleJdbcCallFunction2 = new SimpleJdbcCall(jdbcTemplate)
			.withFunctionName("get_database_time");
    private static final String SQL_STORED_FUNCTION_1 = ""
            + " CREATE OR REPLACE FUNCTION get_price_by_id(p_id IN BOOKS.ID%TYPE) "
            + " RETURN NUMBER"
            + " IS o_price BOOKS.PRICE%TYPE;"
            + " BEGIN"
            + "  SELECT PRICE INTO o_price from BOOKS WHERE ID = p_id;"
            + "  RETURN(o_price);"
            + " END;";
    private static final String SQL_STORED_FUNCTION_2 = ""
            + " CREATE OR REPLACE FUNCTION get_database_time "
            + " RETURN VARCHAR2"
            + " IS o_date VARCHAR2(20);"
            + " BEGIN"
            + "  SELECT TO_CHAR(SYSDATE, 'DD-MON-YYYY HH:MI:SS') INTO o_date FROM dual;"
            + "  RETURN(o_date);"
            + " END;";
    public void start() {
        log.info("Creating Store Procedures and Function...");
        jdbcTemplate.execute(SQL_STORED_FUNCTION_1);
        jdbcTemplate.execute(SQL_STORED_FUNCTION_2);
        /* Test Stored Function 1 */
        SqlParameterSource in = new MapSqlParameterSource()
                .addValue("p_id", 3L);
        BigDecimal price = simpleJdbcCallFunction1.executeFunction(BigDecimal.class, in);
        System.out.println(price);  // 37.3
        /* Test Stored Function 2 */
        String database_time = simpleJdbcCallFunction2.executeFunction(String.class);
        System.out.println(database_time); // e.g current date, 23-JUL-2019 05:08:44

In summary:

  • For Stored Procedure, SimpleJdbcCall.execute.
  • For Stored Function, SimpleJdbcCall.executeFunction

发布日期: 2019-08-11 标签： jdbc oracle spring boot spring jdbc stored function stored procedure
文章来源:https://www.mkyong.com/spring-boot/spring-boot-jdbc-stored-procedure-examples/
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