一个jdbc与存储过程调用之间的数据映射问题
背景
一个功能，管理员直接添加用户账号，存储过程如下【postgresql数据库】：
-- 存储过程 管理员直接添加会员账号
CREATE OR REPLACE FUNCTION "sp_account_member_reg_by_admin"(
para_name character varying(45),
para_email character varying(255),
para_mobile character(11),
para_avatar character varying(400),
para_longitude numeric(10,6),
para_latitude numeric(10,6),
para_region_id integer,
para_address character varying(100),
para_member_status smallint,
out record_json varchar
)
RETURNS varchar
AS $BODY$
declare tmpId integer;
declare tmpId_str varchar;
declare opResult sys_type_operation_outline;
declare logic_allow boolean;
declare c_v_name character varying(45);
declare c_v_email character varying(255);
declare c_v_mobile character(11);
declare c_v_avatar character varying(400);
declare c_v_regist_time timestamp(6) without time zone;
declare c_v_longitude numeric(10,6);
declare c_v_latitude numeric(10,6);
declare c_v_region_id integer;
declare c_v_address character varying(100);
declare c_v_member_status smallint;
declare c_v_data_completed boolean;
declare no_mobile boolean;
declare no_email boolean;
begin
opResult.state:=false;
opResult."stateCode":=0;
opResult.message:='';
-- 正式的参数赋值
c_v_name:=para_name;
c_v_email:=para_email;
c_v_mobile:=para_mobile;
c_v_avatar:=para_avatar;
c_v_regist_time:= now();
c_v_longitude:=para_longitude;
c_v_latitude:=para_latitude;
c_v_region_id:=para_region_id;
c_v_address:=para_address;
c_v_member_status:=para_member_status;
c_v_data_completed:=false;
if para_avatar is not null and char_length(para_avatar)>0 then
c_v_data_completed:=true;
end if;
no_mobile:=false;
no_email:=false;
if c_v_mobile is null or char_length(c_v_mobile) <1 then
no_mobile:=true;
else
perform id from member where "mobile"=c_v_mobile limit 1;
if found then
opResult.message:=config('errors','mobile_exist','message');
opResult."stateCode":=config('errors','mobile_exist','code');
opResult."state":=false;
select row_to_json(t) into record_json from ( select opResult.state,opResult."stateCode",opResult.message,'' as data ) t;
return;
end if;
end if;
if c_v_email is null or char_length (c_v_email) < 1 then
no_email:=true;
else
perform id from member where "email"=c_v_email limit 1;
if found then
opResult.message:=config('errors','email_exist','message');
opResult."stateCode":=config('errors','email_exist','code');
opResult."state":=false;
select row_to_json(t) into record_json from ( select opResult.state,opResult."stateCode",opResult.message ) t;
return;
end if;
end if ;
if no_mobile=true and no_email=true then
opResult.message:='手机号码或者邮箱地址不能同时为空！';
opResult."stateCode":=-1;
opResult."state":=false;
select row_to_json(t) into record_json from ( select opResult.state,opResult."stateCode",opResult.message ) t;
return;
end if;
INSERT INTO "member"(
-- 主键不插入记录。
"name"
, "email"
, "mobile"
, "avatar"
, "regist_time"
, "longitude"
, "latitude"
, "region_id"
, "address"
, "member_status"
, "data_completed"
)
VALUES (
c_v_name
, c_v_email
, c_v_mobile
, c_v_avatar
, c_v_regist_time
, c_v_longitude
, c_v_latitude
, c_v_region_id
, c_v_address
, c_v_member_status
, c_v_data_completed
);
if FOUND then
opResult.message:='您已经成功创建了一个会员账号';
opResult."stateCode":=0;
opResult."state":=true;
else
opResult.message:='会员账号创建失败！';
opResult."stateCode":=-1;
opResult."state":=false;
end if;
if opResult.state=true then
select row_to_json(t) into record_json from ( select opResult.state,opResult."stateCode",opResult.message,currval(pg_get_serial_sequence('member', 'id')) as data ) t;
else
select row_to_json(t) into record_json from ( select opResult.state,opResult."stateCode",opResult.message ) t;
end if;
return;
end;
$BODY$ LANGUAGE plpgsql volatile;
请留意参数：
然后，jdbc下面的调用为：
/***
* 管理员直接添会员账号
***/
public OpResult RegByAdmin(MemberRegByAdmin model)
{
int totalParaCount=9+1 ;//--存储过程参数总个数。
String procName="sp_account_member_reg_by_admin";
final HashMap map_out_paras=new HashMap<>();
int theParamIndex=0;
OpResult opResult=new OpResult();
StringBuilder paraStr=new StringBuilder();
String callable_para_str="";
for(int i=0;i0){
paraStr.append(',');
callable_para_str=(paraStr.toString().replaceFirst(",,",""));
}
final String sql="{ call \""+procName+"\"("+callable_para_str+")}";
CallableStatementCreator stCreator=new CallableStatementCreator() {
@Override
public CallableStatement createCallableStatement(Connection con) throws SQLException {
CallableStatement st=con.prepareCall(sql);
int paraIndex=0;
paraIndex++; st.setString(paraIndex,model.name);
paraIndex++; st.setString(paraIndex,model.email);
paraIndex++; st.setString(paraIndex,model.mobile);
paraIndex++; st.setString(paraIndex,model.avatar);
paraIndex++; st.setDouble(paraIndex,model.longitude);
paraIndex++; st.setDouble(paraIndex,model.latitude);
paraIndex++; st.setInt(paraIndex,model.region_id);
paraIndex++; st.setString(paraIndex,model.address);
paraIndex++; st.setShort(paraIndex,model.member_status);
paraIndex++;st.registerOutParameter(paraIndex, Types.VARCHAR);map_out_paras.put("op_result",paraIndex);
return st;
}
};
CallableStatementCallback stCallback=new CallableStatementCallback(){
@Override
public OpResult doInCallableStatement(CallableStatement cs) throws SQLException, DataAccessException {
OpResult op_result=new OpResult();
cs.execute();
ResultSet rs=(ResultSet)cs.getResultSet();
String json_op_result=cs.getString(map_out_paras.get("op_result"));
op_result= JSONObject.parseObject(json_op_result,OpResult.class);
if(rs!=null){
rs.close();
}
cs.getConnection().setAutoCommit(true);
return op_result;
}
};
opResult=jdbcTemplate.execute(stCreator,stCallback);
return opResult;
}
用到的模型为：
public class MemberRegByAdmin {
public MemberRegByAdmin(){
this.setNULL();
}
public String name="";
public void setName(String name){
this.name=name;
}
public String getName(){
return this.name;
}
public String email="";
public void setEmail(String email){
this.email=email;
}
public String getEmail(){
return this.email;
}
public String mobile="";
public void setMobile(String mobile){
this.mobile=mobile;
}
public String getMobile(){
return this.mobile;
}
public String avatar="";
public void setAvatar(String avatar){
this.avatar=avatar;
}
public String getAvatar(){
return this.avatar;
}
public Double longitude=0.0;
public void setLongitude(Double longitude){
this.longitude=longitude;
}
public Double getLongitude(){
return this.longitude;
}
public Double latitude=0.0;
public void setLatitude(Double latitude){
this.latitude=latitude;
}
public Double getLatitude(){
return this.latitude;
}
public Integer region_id=0;
public void setRegion_id(Integer region_id){
this.region_id=region_id;
}
public Integer getRegion_id(){
return this.region_id;
}
public String address="";
public void setAddress(String address){
this.address=address;
}
public String getAddress(){
return this.address;
}
public Short member_status=0;
public void setMember_status(Short member_status){
this.member_status=member_status;
}
public Short getMember_status(){
return this.member_status;
}
public void setNULL(){
this.name=null;
this.email=null;
this.mobile=null;
this.avatar=null;
this.longitude=null;
this.latitude=null;
this.region_id=null;
this.address=null;
this.member_status=null;
}
public void resetDefaultVal(){
this.name="";
this.email="";
this.mobile="";
this.avatar="";
this.longitude=0.0;
this.latitude=0.0;
this.region_id=0;
this.address="";
this.member_status=0;
}
}
测试代码为：
@Test
public void testMemberRegByAdmin(){
MemberRegByAdmin model=new MemberRegByAdmin();
model.resetDefaultVal();
model.setName("dfdfdf");
model.setMobile("");
model.setEmail("");
OpResult opResult=memberBiz.RegByAdmin(model);
System.out.println(JSONObject.toJSONString(opResult));
}
测试结果为：
Caused by: org.postgresql.util.PSQLException: ERROR: function
sp_account_member_reg_by_admin(character varying, character varying, character varying, character varying, double precision, double precision, integer, character varying, smallint) does not exist
建议：No function matches the given name and argument types. You might need to add explicit type casts.
位置：15
注意到：
两个坐标的数据类型
与：
方法定义里面的参数不一样，所以，java中的double与numeric是不一样的，
只有一种解决方案，就是直接指定参数类型：
然后你会发现：
done.