spring 中StoredProcedure的用法--转载

StoredProcedure是一个抽象类，必须写一个子类来继承它，这个类是用来简化JDBCTemplate执行存储过程操作的。

首先我们写一个实现类：

import java.sql.Types;
import java.util.HashMap;
import java.util.Map;

import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.sqlOutParameter;
import org.springframework.jdbc.core.sqlParameter;
import org.springframework.jdbc.core.sqlReturnResultSet;
import org.springframework.jdbc.object.StoredProcedure;

/**

Name:StoredProcedureTemplate User: HP Date: 2007-7-21 Time: 7:40:01
Description:
*/
public class StoredProcedureTemplate extends StoredProcedure {

private HashMap<String,Object> map = new HashMap<String,Object>();

public StoredProcedureTemplate() {
super();

}

public HashMap getMap()
{
return this.map;
}

public void setValue(String key,Object obj) {
map.put(key,obj);
}

public Map execute() {
if (this.getsql() == null || this.getsql().equals(""))
return null;
this.compile();
return execute(map);
}

public void setvarcharParam(String param) {
this.declareParameter(new sqlParameter(param,Types.VARCHAR));
}

public void setDoubleParam(String param) {
this.declareParameter(new sqlParameter(param,Types.DOUBLE));
}

public void setIntegerParam(String param) {
this.declareParameter(new sqlParameter(param,Types.INTEGER));
}

public void setvarcharOutParam(String param) {
this.declareParameter(new sqlOutParameter(param,Types.VARCHAR));
}

public void setDoubleOutParam(String param) {
this.declareParameter(new sqlOutParameter(param,Types.DOUBLE));
}

public void setIntegerOutParam(String param) {
this.declareParameter(new sqlOutParameter(param,Types.INTEGER));
}

public void setInParam(String param,int valueType)
{
this.declareParameter(new sqlParameter(param,valueType));

}

public void setoutParam(String param,int valueType)
{
this.declareParameter(new sqlOutParameter(param,valueType));

}

public void setReturnParam(String param,RowMapper rowMapper) {
this.declareParameter(new sqlReturnResultSet(param,rowMapper));
}

}

写一个测试：

= sspathXmlApplicationContext( "classpath:spring/applicationContext-base.xml"= (JdbcTemplate) context.getBean("jdbcTemplate"

    StoredProcedureTemplate template </span>= <span style="color: #0000ff;"&gt;new</span><span style="color: #000000;"&gt; StoredProcedureTemplate();

    template.setJdbcTemplate(jdbc);
    template.set<a href="/tag/sql/" target="_blank" class="keywords">sql</a>(</span>"testproc"<span style="color: #000000;"&gt;);
    </span><span style="color: #008000;"&gt;//</span><span style="color: #008000;"&gt;注意有返回结果集的时候，第<a href="/tag/yige/" target="_blank" class="keywords">一个</a>参数必须设置为返回结果集参数，不然会报错。</span>
    template.setReturnP<a href="/tag/ara/" target="_blank" class="keywords">ara</a>m("rows",<span style="color: #0000ff;"&gt;new</span><span style="color: #000000;"&gt; F<a href="/tag/irs/" target="_blank" class="keywords">irs</a>tReportRowMapper());

    template.setIntegerP<a href="/tag/ara/" target="_blank" class="keywords">ara</a>m(</span>"@p<a href="/tag/ara/" target="_blank" class="keywords">ara</a>ma"<span style="color: #000000;"&gt;);

    template.setValue(</span>"@p<a href="/tag/ara/" target="_blank" class="keywords">ara</a>ma",9<span style="color: #000000;"&gt;);

    Map map </span>=<span style="color: #000000;"&gt; template.execute();
    Object o </span>= map.get("rows"<span style="color: #000000;"&gt;);
    List</span><FirstReportVO> list = (List<FirstReportVO><span style="color: #000000;"&gt;)o;
    </span><span style="color: #0000ff;"&gt;for</span><span style="color: #000000;"&gt; (F<a href="/tag/irs/" target="_blank" class="keywords">irs</a>tReportVO vo : list) {
        Sy<a href="/tag/stem/" target="_blank" class="keywords">stem</a>.out.println(vo.getSortID()</span>+","+<span style="color: #000000;"&gt;vo.getSortName());
    }
}</span></pre>

唯一要注意的地方就是测试里备注的地方，我测试了好久才发现，郁闷的一塌糊涂，老是莫名其妙的错，原来将参数互换一下位置就OK了，比如你把

template.setIntegerParam("@parama");写在前面然后再写template.setReturnParam("rows",new FirstReportRowMapper());的话，就会报空指针错误。

这个“rows”可以随便取名字，不过下面map.get("rows")要和你取的名字一致，因为StoredProcedureTemplate会将结果集以这个名字保存在map中返回。

还有要注意的就是设置sqlparamter的顺序要和存储过程中参数的顺序要一致，不然也会报错.

原文：http://blog.csdn.net/xiao_jun_0820/article/details/7268219

http://forum.spring.io/forum/spring-projects/data/13984-multiple-calls-to-storedprocedure-using-same-connection

spring 中StoredProcedure的用法--转载

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