java中异常处理
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在做循环时，如果不做任何异常处理的话，一旦发生错误，程序将会停止，不会继续执行，这不会是我们想看到的结果。因此在加上try-catch处理后，程序遇到错误，会把错误抛出来，继续执行下一个循环。
这个是循环中没有处理异常
for (TalkBean talkBean : list) {
String talk_mjbh=talkBean.getTalk_mjbh();
String talk_zfbh=talkBean.getTalk_zfbh();
String audiofile=talkBean.getAudiofile();
String remark=talkBean.getRemark();
String talk_address=talkBean.getTalk_address();
String talk_sub_type=talkBean.getTalk_sub_type();
String talk_thpj=talkBean.getTalk_thpj();
String talk_type=talkBean.getTalk_type();
System.out.println("文件名称"+audiofile);
Dto rowDto_f1 = Dtos.newDto();
rowDto_f1.put("filename", audiofile);
int countInt_f1 = uploadmobilefileinfoMapper.rows(rowDto_f1);
if (countInt_f1 == 1) {
Code = "103";
Codevalue = "重复上传录音文件。";
}
Dto rowDto_p = Dtos.newDto();
rowDto_p.put("biz_code_", talk_mjbh);
rowDto_p.put("delete_flag_", "0");
int countInt_p = aos_sys_userMapper.rows(rowDto_p);
if (countInt_p == 0) {
talk_mjbh="root";
}
Dto rowDto_c = Dtos.newDto();
rowDto_c.put("zf_bh", talk_zfbh);
rowDto_c.put("delete_flag_", "0");
int countInt_c = xw_base_prisonerMapper.rows(rowDto_c);
Xw_th_talkeduPO xw_th_talkeduPO = new Xw_th_talkeduPO();
xw_th_talkeduPO.setId_(AOSId.uuid());
xw_th_talkeduPO.setAudit_remark(remark);
Dto qDto_p = Dtos.newDto();
qDto_p.put("biz_code_", talk_mjbh);
Dto police_Dto = sqlDao.selectDto("Talk.getPoliceId", qDto_p);
String police_id = police_Dto.getString("id_");
String org_id_ = police_Dto.getString("org_id_");
Dto rowDto_c1 = Dtos.newDto();
rowDto_c1.put("zf_bh", talk_zfbh);
rowDto_c1.put("org_id_", org_id_);
rowDto_c1.put("delete_flag_", "0");
int countInt_c1 = xw_base_prisonerMapper.rows(rowDto_c1);
if(countInt_c==0||countInt_c1 == 0){
uploadstate="false";
if (countInt_c1 == 0) { //如果不在一个监区，就把罪犯id设置为上传时读取到的罪犯编号
xw_th_talkeduPO.setPrisoner_id(talk_zfbh);
}
}
xw_th_talkeduPO.setCreator(police_id);
xw_th_talkeduPO.setCreattime(AOSUtils.getDateTimeStr());
xw_th_talkeduPO.setRemark(remark);
xw_th_talkeduPO.setTalk_address(talk_address);
xw_th_talkeduPO.setTalk_sub_type(talk_sub_type);
xw_th_talkeduPO.setTalk_type(talk_type);
xw_th_talkeduPO.setStatus("2");
xw_th_talkeduPO.setTalk_effect(talk_thpj);
Aos_sys_orgPO aos_sys_orgPO = aos_sys_orgMapper.selectByKey(org_id_);
xw_th_talkeduPO.setOrg_id_(org_id_);
xw_th_talkeduPO.setOrg_cascade_id_(aos_sys_orgPO.getCascade_id_());
xw_th_talkeduPO.setUploadstate(uploadstate);
xw_th_talkeduPO.setPolice_id(police_id);
if (countInt_c == 1) {
Dto qDto = Dtos.newDto();
qDto.put("zf_bh", talk_zfbh);
String prisoner_id = (String) sqlDao.selectOne("Talk.getPrisonerId", qDto);
System.out.println("prisoner_id是："+prisoner_id);
xw_th_talkeduPO.setPrisoner_id(prisoner_id);
}
String dateFormat = new SimpleDateFormat("yyyy年MM月dd日").format(new Date());
xw_th_talkeduPO.setTalk_date(dateFormat);
xw_th_talkeduPO.setAudiofile(audiofile);
xw_th_talkeduPO.setTime_length("0");
xw_th_talkeduPO.setIsfrommobile("1");
xw_th_talkeduPO.setTalk_means("1");
xw_th_talkeduMapper.insert(xw_th_talkeduPO);
UploadmobilefileinfoPO uploadmobilefileinfoPO = new UploadmobilefileinfoPO();
uploadmobilefileinfoPO.setId_(AOSId.uuid());
uploadmobilefileinfoPO.setFilename(audiofile);
uploadmobilefileinfoPO.setTime_(AOSUtils.getDateTimeStr());
uploadmobilefileinfoMapper.insert(uploadmobilefileinfoPO);
Code = "success";
Codevalue = "上传文件成功。";
}下面的是处理了异常，程序会继续往下执行
for (TalkBean talkBean : list) {
try {
String talk_mjbh=talkBean.getTalk_mjbh();
String talk_zfbh=talkBean.getTalk_zfbh();
String audiofile=talkBean.getAudiofile();
String remark=talkBean.getRemark();
String talk_address=talkBean.getTalk_address();
String talk_sub_type=talkBean.getTalk_sub_type();
String talk_thpj=talkBean.getTalk_thpj();
String talk_type=talkBean.getTalk_type();
System.out.println("文件名称"+audiofile);
Dto rowDto_f1 = Dtos.newDto();
rowDto_f1.put("filename", audiofile);
int countInt_f1 = uploadmobilefileinfoMapper.rows(rowDto_f1);
if (countInt_f1 == 1) {
Code = "103";
Codevalue = "重复上传录音文件。";
}
Dto rowDto_p = Dtos.newDto();
rowDto_p.put("biz_code_", talk_mjbh);
rowDto_p.put("delete_flag_", "0");
int countInt_p = aos_sys_userMapper.rows(rowDto_p);
if (countInt_p == 0) {
talk_mjbh="root";
}
Dto rowDto_c = Dtos.newDto();
rowDto_c.put("zf_bh", talk_zfbh);
rowDto_c.put("delete_flag_", "0");
int countInt_c = xw_base_prisonerMapper.rows(rowDto_c);
Xw_th_talkeduPO xw_th_talkeduPO = new Xw_th_talkeduPO();
xw_th_talkeduPO.setId_(AOSId.uuid());
xw_th_talkeduPO.setAudit_remark(remark);
Dto qDto_p = Dtos.newDto();
qDto_p.put("biz_code_", talk_mjbh);
Dto police_Dto = sqlDao.selectDto("Talk.getPoliceId", qDto_p);
String police_id = police_Dto.getString("id_");
String org_id_ = police_Dto.getString("org_id_");
Dto rowDto_c1 = Dtos.newDto();
rowDto_c1.put("zf_bh", talk_zfbh);
rowDto_c1.put("org_id_", org_id_);
rowDto_c1.put("delete_flag_", "0");
int countInt_c1 = xw_base_prisonerMapper.rows(rowDto_c1);
if(countInt_c==0||countInt_c1 == 0){
uploadstate="false";
if (countInt_c1 == 0) { //如果不在一个监区，就把罪犯id设置为上传时读取到的罪犯编号
xw_th_talkeduPO.setPrisoner_id(talk_zfbh);
}
}
xw_th_talkeduPO.setCreator(police_id);
xw_th_talkeduPO.setCreattime(AOSUtils.getDateTimeStr());
xw_th_talkeduPO.setRemark(remark);
xw_th_talkeduPO.setTalk_address(talk_address);
xw_th_talkeduPO.setTalk_sub_type(talk_sub_type);
xw_th_talkeduPO.setTalk_type(talk_type);
xw_th_talkeduPO.setStatus("2");
xw_th_talkeduPO.setTalk_effect(talk_thpj);
Aos_sys_orgPO aos_sys_orgPO = aos_sys_orgMapper.selectByKey(org_id_);
xw_th_talkeduPO.setOrg_id_(org_id_);
xw_th_talkeduPO.setOrg_cascade_id_(aos_sys_orgPO.getCascade_id_());
xw_th_talkeduPO.setUploadstate(uploadstate);
xw_th_talkeduPO.setPolice_id(police_id);
if (countInt_c == 1) {
Dto qDto = Dtos.newDto();
qDto.put("zf_bh", talk_zfbh);
String prisoner_id = (String) sqlDao.selectOne("Talk.getPrisonerId", qDto);
System.out.println("prisoner_id是："+prisoner_id);
xw_th_talkeduPO.setPrisoner_id(prisoner_id);
}
String dateFormat = new SimpleDateFormat("yyyy年MM月dd日").format(new Date());
xw_th_talkeduPO.setTalk_date(dateFormat);
xw_th_talkeduPO.setAudiofile(audiofile);
xw_th_talkeduPO.setTime_length("0");
xw_th_talkeduPO.setIsfrommobile("1");
xw_th_talkeduPO.setTalk_means("1");
xw_th_talkeduMapper.insert(xw_th_talkeduPO);
UploadmobilefileinfoPO uploadmobilefileinfoPO = new UploadmobilefileinfoPO();
uploadmobilefileinfoPO.setId_(AOSId.uuid());
uploadmobilefileinfoPO.setFilename(audiofile);
uploadmobilefileinfoPO.setTime_(AOSUtils.getDateTimeStr());
uploadmobilefileinfoMapper.insert(uploadmobilefileinfoPO);
Code = "success";
Codevalue = "上传文件成功。";
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}记住，在可能出错的代码外面，包裹一层try-catch。
本文出自 “YuanGuShi” 博客，请务必保留此出处http://cm0425.blog.51cto.com/10819451/1934804
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