20170401 错了两天的-XML解析

你不找到的话，错误就在那里。你找到了错误才会成为财富！

Strans XML 解析3要素：
1.源xml 格式正常，

eg.

'<?xml version="1.0" encoding="UTF-8"?>'

'<handleIMatnrResourceServiceResponse><out>'
'<MLMatnrResource>
<backup1/>
<backup2/>
<backup3/>
<backup4/>
<backup5/>
<ebeln>4800064316</ebeln>
<ebelp>00010</ebelp>
<lifnrAmount/>
<maktx>A级冰箱型号标贴_C0414.6-1(A</maktx>'
'<matnr>000000000800013563</matnr>
<proAmount/>
<storeAmount>12.0</storeAmount>

</MLMatnrResource>'
'</out></handleIMatnrResourceServiceResponse>'

　　

2.XML 解析例程可用，

判断方法：

a.code pass,

b.节点正确，

3.检查表结构对应是否OK,

用这个 以图 片方式编辑简单转换 ---正确和错误的对比没差别，这个方式作用不大！

Debug 进去比对源结构和程序结构是否对应，可以检查结构问题

<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates">

  <tt:root name="MLMatnrResource"/>
  <tt:template>
    <handleIMatnrResourceServiceResponse>
      <out>
        <tt:loop name="out" ref=".MLMatnrResource">
          <MLMatnrResource>

            <backup1>
              <tt:value ref="$ref.backup1"/>
            </backup1>
            <backup2>
              <tt:value ref="$ref.backup2"/>
            </backup2>
            <backup3>
              <tt:value ref="$ref.backup3"/>
            </backup3>
            <backup4>
              <tt:value ref="$ref.backup4"/>
            </backup4>
            <backup5>
              <tt:value ref="$ref.backup5"/>
            </backup5>

            <ebeln>
              <tt:value ref="$ref.ebeln"/>
            </ebeln>
            <ebelp>
              <tt:value ref="$ref.ebelp"/>
            </ebelp>
            <lifnrAmount>
              <tt:value ref="$ref.lifnrAmount"/>
            </lifnrAmount>
            <maktx>
              <tt:value ref="$ref.maktx"/>
            </maktx>
            <matnr>
              <tt:value ref="$ref.matnr"/>
            </matnr>
            <proAmount>
              <tt:value ref="$ref.proAmount"/>
            </proAmount>
            <storeAmount>
              <tt:value ref="$ref.storeAmount"/>
            </storeAmount>
          </MLMatnrResource>
        </tt:loop>
      </out>
    </handleIMatnrResourceServiceResponse>
  </tt:template>

</tt:transform>

　　

3.RETURN 内表定义要与源数据表 匹配！

实例证明，表结构不对应，解析不了，

 CALL TRANSFORMATION  ZML_XML_TRANS02"ZML_XML_RESOURCE
        SOURCE XML Z_OUT-RETURN_DATA
        RESULT MLMATNRRESOURCE =  GT_RE.

FUNCTION ZMLSCP1_FR0008.
*"----------------------------------------------------------------------
*"*"本地接口：
*"  IMPORTING
*"     VALUE(I_EBELN) TYPE  EBELN OPTIONAL
*"     VALUE(I_MATNR) TYPE  MATNR OPTIONAL
*"  EXPORTING
*"     VALUE(O_STATU) TYPE  CHAR1
*"     VALUE(O_MSG) TYPE  CHAR255
*"  TABLES
*"      OT_RESOURCE STRUCTURE  ZSRM_RESOURCE
*"----------------------------------------------------------------------
*&Flag  -手动； -自动
  DATA:L_TABIX TYPE SY-TABIX.
  DATA:LV_FLAG TYPE C.
  DATA:LV_CON  TYPE STRING.
  DATA: ERROR TYPE REF TO CX_AI_SYSTEM_FAULT.
  DATA: PRXY  TYPE REF TO ZCO_REQUEST_IMATNR_RESOURCE_SE."Proxy Name
  DATA: Z_IN  TYPE ZREQUEST8. "request in
  DATA: Z_OUT TYPE ZRESPONSE8."request out
  DATA: O_CX  TYPE  REF  TO  CX_ROOT.
  DATA: O_ERROR TYPE REF TO CX_ST_ERROR.
  TYPES:BEGIN OF TY_RE,
    BACKUP1 TYPE STRING,"备用字段1
    BACKUP2 TYPE STRING,"备用字段2
    BACKUP3 TYPE STRING,"备用字段3
    BACKUP4 TYPE STRING,"备用字段4
    BACKUP5 TYPE STRING,"备用字段5
    EBELN   TYPE STRING,"采购订单号
    EBELP   TYPE STRING,"采购订单行项目号
    LIFNRAMOUNT TYPE MENGE, "供应商库存数量 "结构-MENGE:物料主记录视图: 可选的物料数量
    MAKTX   TYPE STRING,    "物料描述
    MATNR   TYPE STRING,    "物料代码
    PROAMOUNT TYPE MENGE,   "生产数量
    STOREAMOUNT TYPE MENGE, "线边仓库存数量
    PRODATE TYPE DATUM,     "生产日期
        END OF TY_RE.
  DATA:GT_RE TYPE STANDARD TABLE OF TY_RE,
       WA_RE LIKE LINE OF GT_RE.

*&job user
  IF SY-UNAME EQ ''.
    LV_FLAG = ''.
  ELSE.
    LV_FLAG = ''.
  ENDIF.

  CONCATENATE '<in0>' LV_FLAG '</in0>' '<in1>' I_EBELN '</in1>' '<in2>' I_MATNR '</in2>' INTO LV_CON.

*&s1.call proxy get data via cis
*  Z_IN-REQUEST_DATA = '<?xml version="1.0" encoding="UTF-8"?><handleIMatnrResourceService><in0>' && LV_FLAG && '</in0></handleIMatnrResourceService>'.
  CONCATENATE '<?xml version="1.0" encoding="UTF-8"?><handleIMatnrResourceService>' LV_CON '</handleIMatnrResourceService>' INTO Z_IN-REQUEST_DATA.
  CLEAR ERROR.
  TRY.
      CREATE OBJECT PRXY
        EXPORTING
          LOGICAL_PORT_NAME = 'ZMLSCP_GET_RESOURCE'.
      CALL METHOD PRXY->REQUEST
        EXPORTING
          INPUT  = Z_IN
        IMPORTING
          OUTPUT = Z_OUT.
    CATCH CX_AI_SYSTEM_FAULT INTO ERROR.
      O_STATU = 'E'.
      O_MSG = ERROR->ERRORTEXT.
      RETURN.
  ENDTRY.

*&1.1 is it ok?
  IF Z_OUT-RETURN_CODE = 'E'.
    O_STATU = 'E'.
    O_MSG = Z_OUT-RETURN_DESC.
    RETURN.
  ENDIF.

  BREAK-POINT.
*&s2.transfer XML
  IF Z_OUT-RETURN_DATA IS NOT INITIAL."业务系统返回报文不为空
    TRY .
        CLEAR:GT_RE,WA_RE.
        CALL TRANSFORMATION  ZML_XML_TRANS02"ZML_XML_RESOURCE
        SOURCE XML Z_OUT-RETURN_DATA
        RESULT MLMATNRRESOURCE =  GT_RE.
*
        IF  SY-SUBRC NE .
          O_STATU = 'E'.
          O_MSG = 'XML解析失败！'.
          RETURN.
        ENDIF.
  BREAK-POINT.
      CATCH CX_ST_ERROR INTO O_ERROR .
        O_STATU = 'E'.
        O_MSG = O_ERROR->GET_TEXT( ) .
    ENDTRY.
  ELSE.
    O_STATU = 'E'.
    O_MSG = '返回结果为空！'.
  ENDIF.

*&s3.data save to ZSRM_RESOURCE
  IF GT_RE[] IS NOT INITIAL.
    LOOP AT GT_RE INTO WA_RE.
      MOVE-CORRESPONDING WA_RE TO OT_RESOURCE.
      OT_RESOURCE-ZDATUM = SY-DATUM.
      OT_RESOURCE-ZCPUTM = SY-UZEIT.
      OT_RESOURCE-USNAM  = SY-UNAME.
      OT_RESOURCE-ZFLAG  = LV_FLAG.
      APPEND OT_RESOURCE.
* MODIFY GT_RE FROM WA_RE.
* CLEAR WA_RE.
    ENDLOOP.
* TRY
    MODIFY ZSRM_RESOURCE FROM TABLE OT_RESOURCE.
    IF SY-SUBRC EQ .
      COMMIT WORK AND WAIT .
      DESCRIBE TABLE OT_RESOURCE LINES L_TABIX.
      O_STATU = 'S'.
      O_MSG   = '成功存入ZSRM_RESOURCE' && L_TABIX && '条记录！'.
    ELSE.
      ROLLBACK WORK.
      O_STATU = 'E'.
      O_MSG   = '数据存入 ZSRM_RESOURCE表失败！'.
    ENDIF.

  ENDIF.

ENDFUNCTION.