我正在通过Spring教程，我在JDBC部分遇到了问题。代码是直接从教程本身复制的，并且几次对数据库的调用在失败之前正确运行。谁能帮我？这是我的错误跟踪。
Jul 31, 2012 9:40:03 PM org.springframework.jdbc.core.metadata.GenericCallMetaDataProvider processProcedureColumns
WARNING: Error while retrieving metadata for procedure columns: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: FUNCTION getrecord does not exist
Jul 31, 2012 9:40:03 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]
Jul 31, 2012 9:40:03 PM org.springframework.jdbc.support.SQLErrorCodesFactory <init>
INFO: SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase] Exception in thread "main" org.springframework.jdbc.BadSqlGrammarException: CallableStatementCallback; bad SQL grammar [{call getrecord()}]; nested exception is com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: FUNCTION getrecord does not exist
at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:98)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:969)
at org.springframework.jdbc.core.JdbcTemplate.call(JdbcTemplate.java:1003)
at org.springframework.jdbc.core.simple.AbstractJdbcCall.executeCallInternal(AbstractJdbcCall.java:391)
at org.springframework.jdbc.core.simple.AbstractJdbcCall.doExecute(AbstractJdbcCall.java:354)
at org.springframework.jdbc.core.simple.SimpleJdbcCall.execute(SimpleJdbcCall.java:181)
at com.tutorialspoint.StudentJDBCTemplate.getStudent(StudentJDBCTemplate.java:32)
at com.tutorialspoint.MainApp.main(MainApp.java:29)
Caused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: FUNCTION getrecord does not exist
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3277)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3206)
at com.mysql.jdbc.Statement.executeQuery(Statement.java:1232)
at com.mysql.jdbc.DatabaseMetaData.getCallStmtParameterTypes(DatabaseMetaData.java:1607)
at com.mysql.jdbc.DatabaseMetaData.getProcedureColumns(DatabaseMetaData.java:4034)
at com.mysql.jdbc.CallableStatement.determineParameterTypes(CallableStatement.java:709)
at com.mysql.jdbc.CallableStatement.<init>(CallableStatement.java:513)
at com.mysql.jdbc.Connection.parseCallableStatement(Connection.java:4583)
at com.mysql.jdbc.Connection.prepareCall(Connection.java:4657)
at com.mysql.jdbc.Connection.prepareCall(Connection.java:4631)
at org.springframework.jdbc.core.CallableStatementCreatorFactory$CallableStatementCreatorImpl.createCallableStatement(CallableStatementCreatorFactory.java:167)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:947)
... 6 more
以下是我的主要应用程序中出现问题的部分，并且我已经标记了相关的行。
System.out.println("----Listing Record with ID = 2 -----");
// Error occurs in next line
Student student = studentJDBCTemplate.getStudent(2);
System.out.print("ID : " + student.getId());
System.out.print(", Name : " + student.getName());
System.out.println(", Age : " + student.getAge());
StudentJDBCTemplate有这两个变量。
private DataSource dataSource;
private SimpleJdbcCall jdbcCall;
StudentJDCBTemplate像这样设置数据源，这可能是问题的根源，因为我无法弄清楚getRecord所指的是什么。
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
this.jdbcCall = new SimpleJdbcCall(dataSource)
.withProcedureName("getRecord");
}
这个StudentJDBCTemplate方法出现问题。
public Student getStudent(Integer id) {
SqlParameterSource in = new MapSqlParameterSource().addValue("in_id",
id);
Map<String, Object> out = jdbcCall.execute(in);
Student student = new Student();
student.setId(id);
student.setName((String) out.get("out_name"));
student.setAge((Integer) out.get("out_age"));
return student;
}
这是我的Beans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd "> <!-- Initialization for data source -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/TEST" />
<property name="username" value="root" />
<property name="password" value="password" />
</bean> <!-- Definition for studentJDBCTemplate bean -->
<bean id="studentJDBCTemplate" class="com.tutorialspoint.StudentJDBCTemplate">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
这是值得的，这是我的学生班。
package com.tutorialspoint;
public class Student {
private Integer age;
private String name;
private Integer id;
public void setAge(Integer age) {
this.age = age;
}
public Integer getAge() {
return age;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
}
答案 0 :(得分：1)
关注tutorial后，您错过了getRecord存储过程的创建：
DELIMITER $$
DROP PROCEDURE IF EXISTS `TEST`.`getRecord` $$
CREATE PROCEDURE `TEST`.`getRecord` (
IN in_id INTEGER,
OUT out_name VARCHAR(20),
OUT out_age INTEGER)
BEGIN
SELECT name, age
INTO out_name, out_age
FROM Student where id = in_id;
END $$
DELIMITER ;
答案 1 :(得分：0)
您正在尝试执行存储过程“getrecord”。哪个在数据库中不存在或未正确编译。尝试首先通过SQL Client在数据库端执行。
过程应与签名匹配为2 out参数和一个输入参数。
答案 2 :(得分：0)
Caused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: FUNCTION getrecord does not exist..所以检查一次..创建getrecord函数并尝试一次..
答案 3 :(得分：0)
如果有人在2017年遇到这个问题，如果您使用MySQL Connector版本6.x而不是5.x
，则需要更改旧教程在Beans.xml中，这一行应该是：
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Dropdowns</h2>
<p>The .dropdown class is used to indicate a dropdown menu.</p>
<p>Use the .dropdown-menu class to actually build the dropdown menu.</p>
<p>To open the dropdown menu, use a button or a link with a class of .dropdown-toggle and data-toggle="dropdown".</p>
<div class="dropdown">
<!--<button class="my-btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">Dropdown Example-->
<button class="my-btn my-btn-primary my-dropdown-toggle" type="button" data-toggle="dropdown">Dropdown Example
<span class="caret"></span></button>
<ul class="dropdown-menu">
<li><a href="#">HTML</a></li>
<li><a href="#">CSS</a></li>
<li><a href="#">JavaScript</a></li>
</ul>
</div>
</div>
</body>
</html>
代替：
<property name="url" value="jdbc:mysql://localhost:3306/test?nullNamePatternMatchesAll=true" />
SQL错误非常具有误导性，声称＆＃34; out_name＆＃34;参数未定义。